V. 21b. And Jehovah said in his heart.
51. Moses points out that these words were not spoken by God without heart and feeling, but from his very vitals. This is the meaning of the Hebrew text which has it that God spoke to his own heart.
V. 21c. I will not again curse the ground any more for man's sake.
52. God speaks as if he were sorry for the punishment inflicted upon the earth on account of man, just as formerly he expressed regret for his creation, reproving himself, as it were, for his fury against man. This must not, of course, be understood as implying that God could possibly change his mind; it is written only for our consolation. He accuses and blames himself in order to rouse the little flock to the certain faith that God will be merciful hereafter.
53. And their souls stood in real need of such consolation. They had been terrified as they witnessed God's raging wrath, and their faith could not but be shaken. So now God is impelled to so order his acts and words that these people might expect only grace and mercy. Accordingly he now speaks with them, is present at their sacrifice, shows that he is pleased with them, blames his own counsel, and promises that he will never do anything like it in the future. In brief, he is a different God from what he had been before. While God, indeed, does not change, he wants to change men, who have become altogether habituated to thoughts of wrath.
54. They who have experienced trials of the spirit, know full well how much the soul then stands in need of sure and strong consolation to induce it once more to hope for grace and to forget the wrath. One day, a whole month, perhaps is not enough for this change. Just as it takes a long time to recover from bodily disorders, so such wounds of the soul cannot be healed at once, or by one word. God sees this, and tries by various means to recall the terrified souls to a certain hope of grace; he even chides himself, speaking to his own heart, as in Jeremiah 18, 8, where he promises to repent of the evil he thought of doing, if the offenders also repent.
55. It should furthermore be noted that he says, "I will not again curse the ground." He speaks of a general destruction of the earth, not of a partial one, as when he destroys fields, cities, or kingdoms. The latter instances are for a warning; as Mary says, "He hath put down princes from their thrones." Lk 1, 52.