Augustine of Hippo

"In place," saith he, "of loving me, they detracted from me" (ver. 3). There are six different acts of this class, which may, when mentioned, very easily be borne in mind; (1) to return good for evil, (2) not to return evil for evil; (3) to return good for good, (4) to return evil for evil; (5) not to return good for good, (6) to return evil for good. …

Exposition on Psalm 109 ↗

Jerome

And they have surrounded me with words of hatred. Not that they might believe, but that they might war against me. And they have warred against me without cause. "Without cause" is understood in two ways. That is, without reason: for I had not sinned, and I did not deserve that they should make war upon me. And what worthy cause was there that they should war against me? Because I had healed their sick? because I had raised their dead? because I had done other signs? See therefore that they warred against him without cause. …

Homily 35, on Psalm 108 ↗