Fathers

Loading…

What the Fathers say

Matthew 5:37

Eastern Fathers

John Chrysostom

"But what," it may be said, "if any one should require an oath, and apply constraint?" Let the fear of God be more powerful than the constraint: since, if thou art to bring forward such excuses, thou wilt keep none of the things which are enjoined. …

Homily on the Gospel of Matthew 17 ↗

Theophylact of Ohrid

But let your speech be, Yea, yea; Nay, nay. Lest you ask, "How then will people believe what I say?" He says, "They will believe you if you always tell the truth and never swear at all." For no one is disbelieved more than he who is eager to swear that he speaks the truth. What is more than this, is of the evil one. The Lord says that swearing, which is more than "Yea" and "Nay," is of the devil. But, you will ask, is the law of Moses, which bids us to swear, also evil? Learn, then, that at that time it was not evil to swear. …

Commentary on Matthew ↗

Western Saints

Augustine of Hippo

And he who has learned that an oath is to be reckoned not among things good, but among things necessary, will restrain himself as much as he may, not to use an oath without necessity, unless he sees men loth to believe what it is for their good they should believe, without the confirmation of an oath. This then is good and to be desired, that our conversation be only, yea, yea; nay, nay; for what is more than this cometh of evil. …

Catena Aurea by Aquinas ↗

Jerome

Let your word be 'Yes, yes' or 'No, no'; anything more than this comes from evil. However, evangelical truth does not require an oath, since every faithful statement is considered as if made under oath.

Commentary on Matthew ↗

Hilary of Poitiers

Otherwise; They who live in the simplicity of the faith have not need to swear, with them ever, what is is, what is not is not; by this their life and their conversation are ever preserved in truth.

Catena Aurea by Aquinas ↗