1. He is eternally the same (Ps. 102:25—27). 2. He is the first and the last (Isa. 41:4; 43:10; 44:6; 48:12) 3. He is what He is (Ex. 3:14). 4. He is incorruptible, alone having immortality, always remaining the same (Rom. 1:23; 1 Tim. 1:17; 6:15-16; Heb. 1:11-12). 5. His thought, purpose, will, and decrees are unchangeable: a. He executes His threats and promises (Num. 23:19; 1 Sam. 15:29). b. He does not repent of His gifts and calling (Rom. 11:29). c. He does not cast off people with whom He has made a unilateral covenant (Rom. 11:1). d. He glorifies those whom He foreknows (Rom. 8:29—30). e. He perfects what He starts (Ps. 138:8; Phil. 1:6). f. His faithfulness never lessens (Lam. 3:22—23). 6. He does not change (Mal. 3:6; James 1:17).
John MacArthur