Saint Anselm

“ For if God wishes to lie, we must not conclude that it is right to lie, but rather that he is not God. For no will can ever wish to lie, unless truth in it is impaired, nay, unless the will itself be impaired by forsaking truth. ”

“ If God desires a thing, it is right that he should desire that which involves no unfitness. For if God chooses that it should rain, it is right that it should rain; and if he desires that any man should die, then is it right that he should die. Wherefore, if it be not fitting for God to do anything unjustly, or out of course, it does not belong to his liberty or compassion or will to let the sinner go unpunished who makes no return to God of what the sinner has defrauded him. ”

“ There is no inconsistency in God's commanding us not to take upon ourselves what belongs to Him alone. For to execute vengeance belongs to none but Him who is Lord of all; for when the powers of the world rightly accomplish this end, God himself does it who appointed them for the purpose. ”