Augustine of Hippo

And see that the true doctor does not become angry with the insane assaulting him, but rather pities them and wishes to heal the raging ones from what he suffers. Listen to the doctor hanging on the cross; surrounded by a crowd of raging madmen, he says: Father, forgive them, for they do not know what they are doing. And his voice was not in vain. For after he rose again and was glorified in the eyes of his disciples, so much so that he showed them the scars of the same resurrected flesh, not only presenting himself to be seen but also to be touched, he ascended into heaven, sent the Holy Spirit: miracles began to occur in the name of the one killed, in the name of the crucified, and those who killed him were more deeply pierced than when they saw him hanging on the cross. For they thought that such things happened in the name of the one who was believed to have been killed by their hands. They felt the living one, whom they had mocked as he was dying. They were pierced in heart, as it is written in the Acts of the Apostles; many of the Jews who crucified the Lord sought counsel from the apostles; they also received counsel, because that hanging one did not say in vain: Father, forgive them, for they do not know what they are doing. The apostle said to them: Repent, and be baptized every one of you in the name of our Lord Jesus Christ, and your sins will be forgiven you. It happened: they were baptized and believed in the one whom they crucified.