On the Unchangeableness of God (71-75)

But anger, which is a passion peculiar to man, is here spoken of with especial felicity, but still more metaphorically than the real truth, in order to the explanation of a matter which is extremely necessary, namely, to show that everything that we do through anger, or fear, or pain, or grief, or any other passion, is confessedly faulty and open to reproach; but all that we do in accordance with right reason and knowledge is praiseworthy.

You see now what great caution he uses in speaking here, when he says, "I was indignant that I had made them," not reversing the order of the words so as to say, "Because I had made them I was indignant;" for the latter expression would have become a person who repented of what he had done, an idea which is inconsistent with the nature of God, which foresees everything. But the other doctrine is a general one, being the expression of a man who means to explain by it that anger is the fountain of all sins, and reason the source of all good actions.

But God, remembering his own perfect goodness in every particular, even if the whole or the greater part of mankind fall off from him by reason of the abundance and extravagance of their sins, stretching forth his right hand, his hand of salvation, supports man and raises him up, not permitting the whole race to be utterly destroyed and to perish everlastingly.

On which account God now says, that Noah found grace in his sight, when all the rest of mankind appearing ungrateful were about to receive punishment, in order that he might mingle saving mercy with judgment against sinners.

For if God were to choose to judge the race of mankind without mercy, he would pass on them a sentence of condemnation; since there has never been a single man who, by his own unassisted power, has run the whole course of his life, from the beginning to the end, without stumbling; but since some men have fallen into voluntary, and some into involuntary sins,