One version of the cosmological argument for God's existence emphasizes God as first in time, another emphasizes God as first in importance.
The Existence of God
III. The Cosmological Argument
A. Two Versions of the Argument
1. God as first in time
2. God as first in importance
B. Criticism of the First Version - David Hume
1. The First Cause may be dead.
2. There may be more than one First Cause.
3. The First Cause may be finite.