I grew up at the foot of the Dragoon Mountains in Cochise County, Arizona. While this range is by no means the tallest, it does have a unique rocky formation that is particularly beautiful. Such places give us a sense of awe, of beauty, of might, of our own smallness and finitude. We see that our life is a mist (James 4:14).
But God is unchangeable. This immutability means His very being, knowledge, will, and decrees are fixed from all eternity. God cannot change because He is absolute perfection. He “is not a man, that he should lie, nor a son of man, that he should change his mind” (Numbers 23:19).
This is one of the reasons the Lord is called a Rock (see Deuteronomy 32). While His people Israel waver in infidelity, “He is the Rock, his works are perfect, and all his ways are just” (v. 4). Because the Lord doesn’t change, even when He disciplines His people, He does so with their restoration in sight. “The LORD will judge his people and have compassion on his servants when he sees their strength is gone” (v. 36).