What the Bible says about God's Unchangeableness
(From Forerunner Commentary)
No one would want to pray to a God who is like a chameleon! We would have no desire to talk to a God who is of one mind one day and an entirely different one the next. The unchangeableness of God's purpose, character, and will are the source of one of our greatest motivations to pray.
John W. Ritenbaugh
The Sovereignty of God: Part Eight