What does it mean to quench the Spirit?

How was God created ? I know everyone says that God created himself but how? Is it mentioned anywhere in the Bible of how God was created ?

If God is merciful, Why didn't God have mercy on the devil?

Why doesn't God destroy the devil forever?

Can a Christian believe in science? Can we believe in the basic scientific laws?

How do we know or show that God exists?

Why is Jesus different from other world leaders?

Was Jesus different from the other prophets and how can we say that He was God?

If God is Omnipotent, why does He feel anger? Is He not able to control His emotions?

Why does God allow birth defects?