The Bible repeatedly and unapologetically underscores the fact that God does not change. In fact, He cannot change because He cannot improve on absolute perfection or decline in His eternally fixed nature. His person does not change: "'For I the Lord do not change'" (Mal. 3:6). His plans do not change: "The counsel of the Lord stands forever, the plans of his heart to all generations" (Ps. 33:11). His purpose does not change: "So when God desired to show more convincingly . . . the unchangeable character of his purpose, he guaranteed it with an oath" (Heb. 6:17). God does not change His mind: "'The Glory of Israel will not lie or have regret, for he is not a man, that he should have regret'" (1 Sam. 15:29); or His words: "The Holy One of Israel . . . does not call back his words" (Isa. 31:1-2); or His calling: "The gifts and the calling of God are irrevocable" (Rom. 11:29; cf. Heb. 13:8; James 1:17). There are absolutely no changes in God, no variations, and no surprises (cf. Ps. 102:27).