Re: God's miscalculation on Creation?
Jeremiah wrote:If God is all-powerful and all-knowing. Why did He create an angel knowing full well that angel would become the Devil?
Maybe God didn't!
You are basing your understanding upon those beliefs expressed in the Bible. The Bible was written by man to serve man's purposes.
There are many of us who believe in God but don't accept the Bible or beliefs in the devil, sin or hell.
Maybe God isn't "all-knowing" and that is God's reason for the Creation -- the acquisition of knowledge and experience.