Augustine of Hippo
Catena Aurea · Lukasevangelium 6
But I say unto you which hear, Love your enemies, do good to them which hate you, Bless them that curse you, and pray for them which despitefully use you. And unto him that smiteth thee on the one cheek offer also the other; and him that taketh away thy cloke forbid not to take thy coat also. Give to every man that asketh of thee; and of him that taketh away thy goods ask them not again. And as ye would that men should do to you, do ye also to them likewise. It follows, Bless them that curse you. But some one will say, How can this be? When thou hast seen God made man, and suffering so many things for thee, dost thou still ask and doubt how it is possible to pardon the iniquities of thy fellow servants? Who has suffered what thy God has, when He was bound, scourged, enduring to be spat upon, suffering death? Here it follows, But to every one who seeks, give.
(de Serm. Dom. lib. 1. c. 20.) He says not, To him that seeketh give all things, but give what you justly and honestly can, that is, what as far as man can know or believe, neither hurts you, nor another: and if thou hast justly refused any one, the justice must be declared to him, (so as not to send him away empty,) sometimes thou wilt confer even a greater boon when thou hast corrected him who seeks what he ought not.