"The fact that we can choose between good and evil"
Raises the question: Who created evil? And please don't tell us that it was Lucifer as he only chose evil over good.
In short. On one side there is good and on the other devil and what all creatures created by God can do is to choose between the two.
How could an angel become the Devil?
The angel who became the Devil chose to oppose God and incited the first human pair to join him. He thus made himself Satan, which means “Resister.”—Read Genesis 3:1-5;Revelation 12:9.
