Augustine of Hippo
Catena Aurea · Matthäusevangelium 5
Ye have heard that it hath been said, An eye for an eye, and a tooth for a tooth: But I say unto you, That ye resist not evil: but whosoever shall smite thee on thy right cheek, turn to him the other also. And if any man will sue thee at the law, and take away thy coat, let him have thy cloak also. And whosoever shall compel thee to go a mile, go with him twain. Give to him that asketh thee, and from him that would borrow of thee turn not thou away.
(Serm. in Mont. i. 19.) The third kind of wrongs, which is in the matter of labour, consists of both such as admit restitution, and such as do not—or with or without revenge—for he who forcibly presses a man’s service, and makes him give him aid against his will, can either be punished for his crime, or return the labour. In this kind of wrongs then, the Lord teaches that the Christian mind is most patient, and prepared to endure yet more than is offered; If a man constrain thee to go with him a mile, go with him yet other two. This likewise is meant not so much of actual service with your feet, as of readiness of mind.