God is "same yesterday, today and forever." He cannot become any more Perfect.
He is the immovable Rock of our salvation. We can count on his Word because it does not change. It is not like the stock market or like the money in your pocket which changes in value. God's Word is the same yesterday, today and forever.
What God says he will do.
What God Almighty has already decided to do, in planning our lives before the foundations of the world; we cannot change even by prayer; although many say prayer changes things.
Prayer is like a battery charger drawing us closer to God in His Spirit so we can
change for the better.