Early Church Fathers Scripture Index : Texts

Matthew 5:34

There are 30 footnotes for this reference.

Ante-Nicene Fathers, Volume 1, page 168, footnote 5 (Image)

Apostolic Fathers, Justin Martyr, Irenaeus

Justin Martyr (HTML)

The First Apology (HTML)

Chapter XVI.—Concerning patience and swearing. (HTML)
CCEL Footnote 1796 (In-Text, Margin)

And with regard to our not swearing at all, and always speaking the truth, He enjoined as follows: “Swear not at all; but let your yea be yea, and your nay, nay; for whatsoever is more than these cometh of evil.”[Matthew 5:34] And that we ought to worship God alone, He thus persuaded us: “The greatest commandment is, Thou shalt worship the Lord thy God, and Him only shall thou serve, with all thy heart, and with all thy strength, the Lord God that made thee.” And when a certain man came to Him and said, “Good Master,” He answered and said, “There is none good but God only, who made all things.” And let those who ...

Ante-Nicene Fathers, Volume 1, page 464, footnote 7 (Image)

Apostolic Fathers, Justin Martyr, Irenaeus

Irenæus (HTML)

Against Heresies: Book IV (HTML)

Chapter II.—Proofs from the plain testimony of Moses, and of the other prophets, whose words are the words of Christ, that there is but one God, the founder of the world, whom Our Lord preached, and whom He called His Father. (HTML)
CCEL Footnote 3818 (In-Text, Margin)

6. For they do not receive from the Father the knowledge of the Son; neither do they learn who the Father is from the Son, who teaches clearly and without parables Him who truly is God. He says: “Swear not at all; neither by heaven, for it is God’s throne; nor by the earth, for it is His footstool; neither by Jerusalem, for it is the city of the great King.”[Matthew 5:34] For these words are evidently spoken with reference to the Creator, as also Esaias says: “Heaven is my throne, the earth is my footstool.” And besides this Being there is no other God; otherwise He would not be termed by the Lord either “God” or “the great King;” for a Being who can be so described admits neither of ...

Ante-Nicene Fathers, Volume 3, page 67, footnote 8 (Image)

Tertullian (I, II, III)

Apologetic. (HTML)

On Idolatry. (HTML)

Connection Between Covetousness and Idolatry. Certain Trades, However Gainful, to Be Avoided. (HTML)
CCEL Footnote 233 (In-Text, Margin)

If we think over the rest of faults, tracing them from their generations, let us begin with covetousness, “a root of all evils,” wherewith, indeed, some having been ensnared, “have suffered shipwreck about faith.” Albeit covetousness is by the same apostle called idolatry. In the next place proceeding to mendacity, the minister of covetousness (of false swearing I am silent, since even swearing is not lawful[Matthew 5:34-37])—is trade adapted for a servant of God? But, covetousness apart, what is the motive for acquiring? When the motive for acquiring ceases, there will be no necessity for trading. Grant now that there be some righteousness in business, secure from the duty of watchfulness against ...

Ante-Nicene Fathers, Volume 4, page 269, footnote 4 (Image)

Tertullian (IV), Minucius Felix, Commodian, Origen

Origen. (HTML)

Origen De Principiis. (HTML)

Book II (HTML)
On the World. (HTML)
CCEL Footnote 2073 (In-Text, Margin)

... the whole world also ought to be regarded as some huge and immense animal, which is kept together by the power and reason of God as by one soul. This also, I think, is indicated in sacred Scripture by the declaration of the prophet, “Do not I fill heaven and earth? saith the Lord;” and again, “The heaven is My throne, and the earth is My footstool;” and by the Saviour’s words, when He says that we are to swear “neither by heaven, for it is God’s throne; nor by the earth, for it is His footstool.”[Matthew 5:34] To the same effect also are the words of Paul, in his address to the Athenians, when he says, “In Him we live, and move, and have our being.” For how do we live, and move, and have our being in God, except by His comprehending and holding together ...

Ante-Nicene Fathers, Volume 4, page 276, footnote 1 (Image)

Tertullian (IV), Minucius Felix, Commodian, Origen

Origen. (HTML)

Origen De Principiis. (HTML)

Book II (HTML)
The God of the Law and the Prophets, and the Father of Our Lord Jesus Christ, is the Same God. (HTML)
CCEL Footnote 2102 (In-Text, Margin)

... no other God than the maker of heaven and the bestower of the rain. Again, what else does the expression, which ought to be used by those who pray, “Our Father who art in heaven,” appear to indicate, save that God is to be sought in the better parts of the world, i.e., of His creation? Further, do not those admirable principles which He lays down respecting oaths, saying that we ought not to “swear either by heaven, because it is the throne of God; nor by the earth, because it is His footstool,”[Matthew 5:34-35] harmonize most clearly with the words of the prophet, “Heaven is My throne, and the earth is My footstool?” And also when casting out of the temple those who sold sheep, and oxen, and doves, and pouring out the tables of the money-changers, and ...

Ante-Nicene Fathers, Volume 4, page 368, footnote 5 (Image)

Tertullian (IV), Minucius Felix, Commodian, Origen

Origen. (HTML)

Origen De Principiis. (HTML)

IV (HTML)
Chapter I., Sections 1-23 translated from the Latin of Rufinus:  That the Scriptures are Divinely Inspired. (HTML)
CCEL Footnote 2793 (In-Text, Margin)

... for those who observe it? especially when Paul also has confirmed the com­mand by repeating it in the same words. And what need is there to speak of the prohibitions, “Thou shalt not commit adultery,” “Thou shalt not steal,” “Thou shalt not bear false witness,” and others of the same kind? And with respect to the precepts enjoined in the Gospels, no doubt can be entertained that very many of these are to be literally observed, as, e.g., when our Lord says, “But I say unto you, Swear not at all;”[Matthew 5:34] and when He says, “Whosoever looketh upon a woman to lust after her, hath com­mitted adultery with her already in his heart;” the admonitions also which are found in the writings of the Apostle Paul, “Warn them that are unruly, com­fort the ...

Ante-Nicene Fathers, Volume 4, page 368, footnote 8 (Image)

Tertullian (IV), Minucius Felix, Commodian, Origen

Origen. (HTML)

Origen De Principiis. (HTML)

IV (HTML)
Chapter I., Sections 1-23 translated from the Greek:  On the Inspiration of Holy Scripture, and How the Same is to be Read and Understood, and What is the Reason of the Uncertainty in it; and of the Impossibility or Irrationality of Certain Things in it, Taken According to the Letter. (HTML)
CCEL Footnote 2922 (In-Text, Margin)

... having employed these very same words? And what need is there to speak of the (prohibitions), “Thou shalt not commit adultery,” “Thou shalt not kill,” “Thou shalt not steal,” “Thou shalt not bear false witness?” And again, there are commandments contained in the Gospel which admit of no doubt whether they are to be observed according to the letter or not; e.g., that which says, “But I say unto you, Whoever is angry with his brother,” and so on. And again, “But I say unto you, Swear not at all.”[Matthew 5:34] “And in the writings of the apostle the literal sense is to be retained: “Warn them that are unruly, comfort the feeble-minded, support the weak, be patient towards all men;” although it is possible for those ambitious of a deeper meaning to retain ...

Ante-Nicene Fathers, Volume 5, page 537, footnote 1 (Image)

Hippolytus, Cyprian, Caius, Novatian, Appendix

Cyprian. (HTML)

The Treatises of Cyprian. (HTML)

Three Books of Testimonies Against the Jews. (HTML)
Book III. (HTML)
That we must not swear. (HTML)CCEL Footnote 4266 (In-Text, Margin)

... ye have heard that it was said to them of old, Thou shalt not swear falsely, but shalt perform unto the Lord thine oaths.) I say unto you, Swear not at all: (neither by heaven, because it is God’s throne; nor by the earth, because it is His footstool; nor by Jerusalem, because it is the city of the great King; neither shalt thou swear by thy head, because thou canst not make one hair white or black.) But let your discourse be, Yea, yea; Nay, nay: (for whatever is fuller than these is of evil.”)[Matthew 5:34-37] Of this same thing in Exodus: “Thou shalt not take the name of the Lord thy God in vain.”

Ante-Nicene Fathers, Volume 7, page 377, footnote 25 (Image)

Lactantius, Venantius, Asterius, Victorinus, Dionysius, Apostolic Teaching and Constitutions, 2 Clement, Early Liturgies

The Teaching of the Twelve Apostles (HTML)

The Teaching of the Twelve Apostles (HTML)

Chapter II.—The Second Commandment: Gross Sin Forbidden (HTML)
CCEL Footnote 2395 (In-Text, Margin)

1. And the second commandment of the Teaching; 2. Thou shalt not commit murder, thou shalt not commit adultery, thou shalt not commit pæderasty, thou shalt not commit fornication, thou shalt not steal, thou shalt not practice magic, thou shalt not practice witchcraft, thou shalt not murder a child by abortion nor kill that which is begotten. Thou shalt not covet the things of thy neighbour, 3. thou shalt not forswear thyself,[Matthew 5:34] thou shalt not bear false witness, thou shalt not speak evil, thou shalt bear no grudge. 4. Thou shalt not be double-minded nor double-tongued; for to be double-tongued is a snare of death. 5. Thy speech shall not be false, nor empty, but fulfilled by deed. 6. Thou shalt not be ...

Ante-Nicene Fathers, Volume 7, page 443, footnote 14 (Image)

Lactantius, Venantius, Asterius, Victorinus, Dionysius, Apostolic Teaching and Constitutions, 2 Clement, Early Liturgies

Constitutions of the Holy Apostles (HTML)

Book V (HTML)

Sec. II.—All Association with Idols is to Be Avoided (HTML)
CCEL Footnote 3057 (In-Text, Margin)

... Wherefore it is the duty of a man of God, as he is a Christian, not to swear by the sun, or by the moon, or by the stars; nor by the heaven, nor by the earth, by any of the elements, whether small or great. For if our Master charged us not to swear by the true God, that our word might be firmer than an oath, nor by heaven itself, for that is a piece of heathen wickedness, nor by Jerusalem, nor by the sanctuary of God, nor the altar, nor the gift, nor the gilding of the altar, nor one’s own head,[Matthew 5:34] for this custom is a piece of Judaic corruption, and on that account was forbidden; and if He exhorts the faithful that their yea be yea, and their nay, nay, and says that “what is more than these is of the evil one,” how much more blameable are ...

Ante-Nicene Fathers, Volume 7, page 466, footnote 17 (Image)

Lactantius, Venantius, Asterius, Victorinus, Dionysius, Apostolic Teaching and Constitutions, 2 Clement, Early Liturgies

Constitutions of the Holy Apostles (HTML)

Book VII. Concerning the Christian Life, and the Eucharist, and the Initiation into Christ (HTML)

Sec. I.—On the Two Ways,—The Way of Life and the Way of Death (HTML)
CCEL Footnote 3384 (In-Text, Margin)

... magic. Thou shalt not use witchcraft; for He says, “Ye shall not suffer a witch to live.” Thou shall not slay thy child by causing abortion, nor kill that which is begotten; for “everything that is shaped, and has received a soul from God, if it be slain, shall be avenged, as being unjustly destroyed.” “Thou shalt not covet the things that belong to thy neighbour, as his wife, or his servant, or his ox, or his field.” “Thou shalt not forswear thyself; for it is said, “Thou shalt not swear at all.”[Matthew 5:34] But if that cannot be avoided, thou shalt swear truly; for “every one that swears by Him shall be commended.” “Thou shalt not bear false witness;” for “he that falsely accuses the needy provokes to anger Him that made him.”

Ante-Nicene Fathers, Volume 8, page 248, footnote 19 (Image)

Twelve Patriarchs, Excerpts and Epistles, The Clementina, Apocryphal Gospels and Acts, Syriac Documents

Pseudo-Clementine Literature. (HTML)

The Clementine Homilies. (HTML)

Homily III. (HTML)
Teaching of Christ. (HTML)
CCEL Footnote 1014 (In-Text, Margin)

... as the Scriptures say, He said, ‘From which of you shall his son ask bread, and he will give him a stone; or shall ask a fish, and he will give him a serpent? If ye then, being evil, know to give good gifts to your children, how much more shall your heavenly Father give good things to those who ask Him, and to those who do His will!’ But to those who affirmed that He was in the temple, He said, ‘Swear not by heaven, for it is God’s throne; nor by the earth, for it is the footstool of His feet.’[Matthew 5:34-35] And to those who supposed that God is pleased with sacrifices, He said, ‘God wishes mercy, and not sacrifices’ —the knowledge of Himself, and not holocausts.

Ante-Nicene Fathers, Volume 9, page 57, footnote 28 (Image)

Gospel of Peter, Diatessaron, Apocalypses, Visio Pauli, Testament of Abraham, Acts of X/P, Zosimus, Aristides, Clement, Origen

The Diatessaron of Tatian. (HTML)

The Diatessaron. (HTML)

Section IX. (HTML)
CCEL Footnote 687 (In-Text, Margin)

[1] Ye have heard also that it was said unto the ancients, Lie not, but perform unto [2] God in thy oaths:[Matthew 5:34] but I say unto you, Swear not at all; neither by heaven, for it [3] is God’s throne; nor by the earth, for it is a footstool under his feet; nor yet by [4] Jerusalem, for it is the city of the great King. Neither shalt thou swear by thy [5] head, for thou canst not make in it one lock of hair black or white. But your word shall be either Yea or Nay, and what is in excess of this is of the evil one.

Ante-Nicene Fathers, Volume 9, page 370, footnote 1 (Image)

Gospel of Peter, Diatessaron, Apocalypses, Visio Pauli, Testament of Abraham, Acts of X/P, Zosimus, Aristides, Clement, Origen

Epistle to Gregory and Origen's Commentary on the Gospel of John. (HTML)

Origen's Commentary on the Gospel of John. (HTML)

Book VI. (HTML)
Heracleon's View of This Utterance of John the Baptist, and Interpretation of the Shoe of Jesus. (HTML)
CCEL Footnote 4919 (In-Text, Margin)

... testifies, of Abraham and of Isaac and of Jacob, and He who is greater than heaven and earth for the reason that He is the Maker of them, He also alone is good and is greater than He who was sent by Him. And even if, as we said, Heracleon’s idea was a lofty one, that the whole world was the shoe of Jesus, yet I think we ought not to agree with him. For how can it be harmonized with such a view, that “Heaven is My throne and the earth My footstool,” a testimony which Jesus accepts as said of the Father?[Matthew 5:34-35] “Swear not by heaven,” He says, “for it is God’s throne, nor by the earth, for it is the footstool of His feet.” How, if he takes the whole world to be the shoe of Jesus, can he also accept the text, “Do not I fill heaven and earth?” saith the Lord. ...

Nicene and Post-Nicene Fathers, Series 1, Volume 1, page 292, footnote 1 (Image)

Augustine: Prolegomena: St. Augustine's Life and Work, Confessions, Letters

Letters of St. Augustin (HTML)

Letters of St. Augustin (HTML)

To Publicola (HTML)
CCEL Footnote 1673 (In-Text, Margin)

... false gods. In answering this question, we may accept as decisive those examples which you yourself quoted of Laban and of Abimelech (if Abimelech did swear by his gods, as Laban swore by the god of Nahor). This is, as I have said, another question, and one which would perchance perplex me, were it not for those examples of Isaac and Jacob, to which, for aught I know, others might be added. It may be that some scruple might yet be suggested by the precept in the New Testament, “Swear not at all;”[Matthew 5:34] words which were in my opinion spoken, not because it is a sin to swear a true oath, but because it is a heinous sin to forswear oneself: from which crime our Lord would have us keep at a great distance, when He charged us not to swear at all. I ...

Nicene and Post-Nicene Fathers, Series 1, Volume 3, page 470, footnote 7 (Image)

Augustine: On the Holy Trinity, Doctrinal Treatises, Moral Treatises

Moral Treatises of St. Augustin (HTML)

On Lying. (HTML)

Section 28 (HTML)
CCEL Footnote 2343 (In-Text, Margin)

... Apostle himself has used oaths in his Epistles. And so he shows how that is to be taken which is said, “I say unto you, Swear not at all:” that is, lest by swearing one come to a facility in swearing, from facility to a custom, and so from a custom there be a downfall into perjury. And therefore he is not found to have sworn except in writing, where there is more wary forethought, and no precipitate tongue withal. And this indeed came of evil, as it is said, “Whatever is more than these is of evil:”[Matthew 5:34] not however from evil of his own, but from the evil of infirmity which was in them, in whom he even in this way endeavored to work faith. For that he used an oath in speaking, while not writing, I know not that any Scripture has related concerning ...

Nicene and Post-Nicene Fathers, Series 1, Volume 3, page 474, footnote 2 (Image)

Augustine: On the Holy Trinity, Doctrinal Treatises, Moral Treatises

Moral Treatises of St. Augustin (HTML)

On Lying. (HTML)

Section 37 (HTML)
CCEL Footnote 2368 (In-Text, Margin)

... the way to please men is to lie, that man lieth not, who receiving the truth not thereby to please them but to please God, hath received it for himself. Therefore there is no reason why it should be said here He will destroy all who speak leasing, but not all leasing: because all lies, universally, are cut off in this saying, “And no falsehood proceedeth out of his mouth.” But another saith, it is to be so taken as the Apostle Paul took our Lord’s saying, “But I say unto you, Swear not at all.”[Matthew 5:34] For here also all swearing is cut off; but from the mouth of the heart, that it should never be done with approbation of the will, but through necessity of the weakness of another; that is, “from the evil” of another, when it shows that he cannot ...

Nicene and Post-Nicene Fathers, Series 1, Volume 4, page 240, footnote 3 (Image)

Augustine: The Anti-Manichaean Writings, The Anti-Donatist Writings

Writings in Connection with the Manichæan Controversy. (HTML)

Reply to Faustus the Manichæan. (HTML)

Faustus is willing to admit that Christ may have said that He came not to destroy the law and the prophets, but to fulfill them; but if He did, it was to pacify the Jews and in a modified sense.  Augustin replies, and still further elaborates the Catholic view of prophecy and its fulfillment. (HTML)
CCEL Footnote 667 (In-Text, Margin)

... fulfillment, but destruction. Again: "It has been said, Thou shall love thy friend, and hate thine enemy; but I say unto you, Love your enemies, and pray for your persecutors." This too is destruction. Again: "It has been said, Whosoever shall put away his wife, let him give her a writing of divorcement; but I say unto you, That whosoever shall put away his wife, saving for the cause of fornication, causeth her to commit adultery, and is himself an adulterer if he afterwards marries another woman."[Matthew 5:21-44] These precepts are evidently destroyed because they are the precepts of Moses; while the others are fulfilled because they are the precepts of the righteous men of antiquity. If you agree to this explanation, we may allow that Jesus said that he ...

Nicene and Post-Nicene Fathers, Series 1, Volume 4, page 249, footnote 2 (Image)

Augustine: The Anti-Manichaean Writings, The Anti-Donatist Writings

Writings in Connection with the Manichæan Controversy. (HTML)

Reply to Faustus the Manichæan. (HTML)

Faustus is willing to admit that Christ may have said that He came not to destroy the law and the prophets, but to fulfill them; but if He did, it was to pacify the Jews and in a modified sense.  Augustin replies, and still further elaborates the Catholic view of prophecy and its fulfillment. (HTML)
CCEL Footnote 708 (In-Text, Margin)

... that by the addition of these words Christ supplied a defect in the law, and not rather that the intention of the law to prevent unjust revenge is best secured by not taking revenge at all, in the same way as the intention to prevent perjury is best secured by not swearing at all. For if "an eye for an eye" is opposed to "If any one smite thee on the cheek, turn to him the other also," is there not as much opposition between "Thou shalt perform unto the Lord thine oath," and "Swear not at all?"[Matthew 5:33-34] If Faustus thinks that there is not destruction, but fulfillment, in the one case, he ought to think the same of the other. For if "Swear not" is the fulfillment of "Swear truly," why should not "Take no revenge" be the fulfillment of "Take revenge ...

Nicene and Post-Nicene Fathers, Series 1, Volume 6, page 44, footnote 7 (Image)

Augustine: Sermon on the Mount, Harmony of the Gospels, Homilies on the Gospels

Our Lord’s Sermon on the Mount. (HTML)

On the Latter Part of Our Lord’s Sermon on the Mount, Contained in the Sixth and Seventh Chapters of Matthew. (HTML)

Chapter IX (HTML)
CCEL Footnote 320 (In-Text, Margin)

... mass of His corporeity; and thus exist in one place, and not in another, or at least have one part here, and another elsewhere: but that He is everywhere present in His majesty, not divided by parts, but everywhere complete. But if they take a fleshly view of what is said, “The heaven is my throne, and the earth is my footstool,” —to which passage our Lord also bears testimony, when He says, “Swear not at all: neither by heaven, for it is God’s throne; nor by the earth, for it is His footstool,”[Matthew 5:34-35] —what wonder if the devil, being placed on earth, stood before the feet of God, and spoke something in His presence? For when will they be able to understand that there is no soul, however wicked, which can yet reason in any way, in whose conscience ...

Nicene and Post-Nicene Fathers, Series 1, Volume 8, page 430, footnote 6 (Image)

Augustine: Expositions on the Psalms

Expositions on the Book of Psalms. (HTML)

Psalm LXXXIX (HTML)

CCEL Footnote 4140 (In-Text, Margin)

... renewed to a fresh inheritance, in our longing desire and love of which we sing a new song. “I have made a covenant with My chosen,” saith the Psalmist: “I have sworn unto David My servant.” How confidently does he speak, who understands, whose mouth serves truth! I speak without fear; since “Thou hast said.” If Thou makest me fearless, because Thou hast said, how much more so dost Thou make me, when Thou hast sworn! For the oath of God is the assurance of a promise. Man is justly forbidden to swear:[Matthew 5:34] lest by the habit of swearing, since a man may be deceived, he fall into perjury. God alone swears securely, because He alone is infallible.

Nicene and Post-Nicene Fathers, Series 1, Volume 8, page 543, footnote 9 (Image)

Augustine: Expositions on the Psalms

Expositions on the Book of Psalms. (HTML)

Psalm CX (HTML)

CCEL Footnote 4972 (In-Text, Margin)

... wast Thou born from the womb before the morning star, that Thou mightest be a Priest for ever after the order of Melchizedec. For in that character in which He was born of the Father, God with God, coeternal with Him who begot Him, He is not a Priest; but He is a Priest on account of the flesh which He assumed, on account of the victim which He was to offer for us received from us. “The Lord,” then, “hath sworn.” What then meaneth, the Lord hath sworn? Doth the Lord, who forbiddeth men to swear,[Matthew 5:34] Himself swear? Or doth He possibly forbid man to swear chiefly on this account, that he may not fall into perjury, and for this reason the Lord may swear, since He cannot be forsworn. For man, who, through a habit of swearing, may slip into perjury, ...

Nicene and Post-Nicene Fathers, Series 1, Volume 9, page 444, footnote 1 (Image)

Chrysostom: On the Priesthood, Ascetic Treatises, Select Homilies and Letters, Homilies on the Statutes

The Homilies on the Statues to the People of Antioch. (HTML)

Homily XV (HTML)

CCEL Footnote 1645 (In-Text, Margin)

... Is the Table placed there, that we may make adjurations? It is placed there to this end, that we may loose sins, not that we may bind them. But thou, if thou heedest nothing else, reverence at least that book, which thou reachest forth in putting the oath; and open the Gospel, which thou takest in hand when thou biddest swear; and when thou hearest what Christ there declares concerning oaths, shudder and desist! What then does He there say concerning oaths? “But I say unto you, Swear not at all.”[Matthew 5:34] And dost thou convert the Law which forbids swearing into an oath. Oh, what contempt! Oh, what outrage! For thou doest just the same thing as if any one should bid the lawgiver, who prohibits murder, become himself a party to the murder. Not so much ...

Nicene and Post-Nicene Fathers, Series 1, Volume 9, page 471, footnote 1 (Image)

Chrysostom: On the Priesthood, Ascetic Treatises, Select Homilies and Letters, Homilies on the Statutes

The Homilies on the Statues to the People of Antioch. (HTML)

Homily XIX (HTML)

CCEL Footnote 1797 (In-Text, Margin)

... wherever they go. Thus do thou write the commands of the Gospel and its laws upon thy mind. Here there is no need of gold or property, or of buying a book; but of the will only, and the affections of the soul awakened, and the Gospel will be thy surer guardian, carrying it as thou wilt then do, not outside, but treasured up within; yea, in the soul’s secret chambers. When thou risest up then from thy bed, and when thou goest out of thine house, repeat this law: “I say unto you, Swear not at all.”[Matthew 5:34] And the saying will be to thee a discipline; for there is no need of much labour, but only of a moderate degree of attention. And that this is true, may thus be proved. Call thy son, and frighten him, and threaten to lay a few stripes upon him, if ...

Nicene and Post-Nicene Fathers, Series 1, Volume 11, page 62, footnote 4 (Image)

Chrysostom: Homilies on the Acts of the Apostles and the Epistle to the Romans

A Commentary on the Acts of the Apostles (HTML)

Homily IX on Acts iii. 12. (HTML)

CCEL Footnote 244 (In-Text, Margin)

... send them away rejoicing, both the one and the other. Do what you choose; I lay it down as a law that there be no swearing at all. What hope of salvation, while we thus make all to have been done in vain? Is this the end of your bills, and your bonds, that you should sacrifice your own soul? What gain do you get so great as the loss? Has he forsworn himself? You have undone both him and yourself. But has he not? even so still you have undone (both), by forcing him to transgress the commandment.[Matthew 5:34] Let us cast out this disease from the soul: at any rate let us drive it out of the forum, out of our shops, out of our other work-places; our profits will but be the greater. Do not imagine that the success of your worldly plans is to be ensured by ...

Nicene and Post-Nicene Fathers, Series 2, Volume 3, page 461, footnote 8 (Image)

Theodoret, Jerome and Gennadius, Rufinus and Jerome

Life and Works of Rufinus with Jerome's Apology Against Rufinus. (HTML)

The Apology of Rufinus. Addressed to Apronianus, in Reply to Jerome's Letter to Pammachius. (HTML)

Book II (HTML)
But I follow Christ in condemning all falsehood. (HTML)
CCEL Footnote 2933 (In-Text, Margin)

... some of our brethren, and he repeats this by various letters, according to his recognized plan of action. It is nothing to me what he may write or assert, but, since he raises this question about a doctrine of perjury, I will state my opinion upon it, and then leave him to pass judgment upon himself. It is this. Since our Lord and Saviour says in the Gospels “It was said to them of old time, Thou shalt not forswear thyself, but shalt pay to the Lord thy vows, but I say unto you, Swear not at all;”[Matthew 5:33-34] I say that every one who teaches that for any cause whatever we may swear falsely, is alien from the faith of Christ and from the unity of the catholic church.

Nicene and Post-Nicene Fathers, Series 2, Volume 6, page 401, footnote 8 (Image)

Jerome: Letters and Select Works

Treatises. (HTML)

Against Jovinianus. (HTML)

Book II (HTML)
CCEL Footnote 4821 (In-Text, Margin)

17. My opponent has dared to maintain that our Lord was called by the Pharisees a wine-bibber and a glutton: and from the fact of His going to marriage feasts and from His not despising the banquets of sinners, I am to infer His wishes respecting ourselves. That Lord, so you suppose, is a glutton who fasted forty days to hallow Christian fasting; who calls them blessed that hunger and thirst; who says that He has food, not that which the disciples surmised, but such as would not perish for ever;[Matthew 5:34] who forbids us to think of the morrow; who, though He is said to have hungered and thirsted, and to have gone frequently to various meals, except in celebrating the mystery whereby He represented His passion, or in proving the reality of His body is ...

Nicene and Post-Nicene Fathers, Series 2, Volume 8, page 238, footnote 7 (Image)

Basil: Letters and Select Works

The Letters. (HTML)

To Amphilochius, concerning the Canons. (HTML)

CCEL Footnote 2709 (In-Text, Margin)

... twofold. In the first place, let them be taught not to take oaths at random: secondly, not to persist in their wicked determinations. Any one who is arrested in the design of fulfilling an oath to injure another ought to shew repentance for the rashness of his oath, and must not confirm his wickedness under the pretext of piety. Herod was none the better for fulfilling his oath, when, of course only to save himself from perjury, he became the prophet’s murderer. Swearing is absolutely forbidden,[Matthew 5:34] and it is only reasonable that the oath which tends to evil should be condemned. The swearer must therefore change his mind, and not persist in confirming his impiety. Consider the absurdity of the thing a little further. Suppose a man to swear that ...

Nicene and Post-Nicene Fathers, Series 2, Volume 8, page 248, footnote 3 (Image)

Basil: Letters and Select Works

The Letters. (HTML)

To the clergy of Neocæsarea. (HTML)

CCEL Footnote 2763 (In-Text, Margin)

... to the present time. Gregory did not cover his head at prayer. How could he? He was a true disciple of the Apostle who says, “Every man praying or prophesying, having his head covered, dishonoureth his head.” And “a man indeed ought not to cover his head forasmuch as he is the image of God.” Oaths were shunned by Gregory, that pure soul, worthy of the fellowship of the Holy Ghost, content with yea and nay, in accordance with the commandment of the Lord Who said, “I say unto you swear not at all.”[Matthew 5:34] Gregory could not bear to call his brother a fool, for he stood in awe of the threat of the Lord. Passion, wrath, and bitterness never proceeded out of his mouth. Railing he hated, because it leads not to the kingdom of heaven. Envy and arrogance ...

Nicene and Post-Nicene Fathers, Series 2, Volume 10, page 386, footnote 1 (Image)

Ambrose: Select Works and Letters

Dogmatic Treatises, Ethical Works, and Sermons. (HTML)

Concerning Virgins. (HTML)

Book III. (HTML)
Chapter VI. Having mentioned the Baptist, St. Ambrose enters into a description of the events concerning his death, and speaks against dancing and the festivities of the wicked. (HTML)
CCEL Footnote 3298 (In-Text, Margin)

... repentance on the part of the king, but a confession of guilt, which is, according to the wont of the divine rule, that they who have done evil condemn themselves by their own confession. “But for their sakes which sat with him,” it is said. What is more base than that a murder should be committed in order not to displease those who sat at meat? “And,” it follows, “for his oath’s sake.” What a new religion! He had better have forsworn himself. The Lord therefore in the Gospel bids us not to swear at all,[Matthew 5:34] that there be no cause for perjury, and no need of offending. And so an innocent man is slain that an oath be not violated. I know which to have in the greatest horror. Perjury is more endurable than are the oaths of tyrants.

Online Dictionary & Commentary of Early Church Beliefs