Do not hate the sinner. We are, indeed, all laden with guilt. If for the sake of God you are moved to oppose him, weep over him. Why do you hate him? Hate his sins and pray for him, that you may imitate Christ Who was not wroth with sinners, but interceded for them. Do you not see how he wept over Jerusalem? We are mocked by the devil in many instances, so why should we hate the man who is mocked by him who mocks us also? Why, O man, do you hate the sinner? Could it be because he is not so righteous as you? But where is your righteousness when you have no love? Why do you not shed tears over him? But you persecute him. In ignorance some, who are considered to be discerning men, are moved to anger against the deeds of sinners.
Be a herald of God’s goodness, for God rules over you, unworthy though you are. Although your debt to Him is so very great, He is not seen exacting payment from you; and from the small works you do, He bestows great rewards upon you. Do not call God just, for His justice is not manifest in things concerning you. And if David calls Him just and upright, His Son revealed to us that He is good and kind. ‘He is good’, He says, ‘to the evil and to the impious.’ How can you call God just when you come across the Scriptural passage on the wage given to the workers? ‘Friend, I do thee no wrong: I choose to give unto this last even as unto thee. Or is thine eye evil because I am good?’ How can a man call God just when he comes across the passage on the prodigal son who wasted his wealth with riotous living, how for the compunction alone which he showed, the father ran and fell upon his neck and gave him authority over all his wealth? None other but His very Son said these things concerning Him, lest we doubt it, and thus bore witness concerning Him. Where, then, is God’s justice, for while we are sinners Christ died for us! But if here He is merciful, we may believe that He will not change.
The Ascetical Homilies of Saint Isaac the Syrian, I, 51, translated by the Holy Transfiguration Monastery, Boston, 1984. 251.