2.
Logic tells us the God of Christianity is the true God.
Our conscience tells us that
there is a God, and that He is good. Our sense of logic can
tell us more about God’s characteristics. Incidentally,
logic's view of God matches Christianity’s description of
God.
In the universe, there must
exist a first cause by which no cause precedes it. There
must exist an uncaused cause. Let’s call this uncaused cause
“God.”
Eternal
God must be, by definition,
eternal, else God would need a cause also. All finite,
changing things that exist need causes. To say "well then
what caused God" assumes that God is a finite, changing
thing. God, if He exists, must be infinite and unchanging
else we are left with an infinite regress, which is a
philosophical absurdity. The uncaused cause therefore cannot
be temporal. In short, anything that is actually eternal by
definition cannot have a cause. The question “who caused
God” becomes an absurdity if applied to an eternal being.