How do we know God is good rather than evil?  After all, there is a mix of both good and evil in the world.  Which one is God responsible for?  As Christians, we look to the Bible to tell us about God’s moral nature, but what if we didn’t have Scripture?  Could we discern that God is good from natural theology alone?  Yes, and here’s how.

Most people would agree that the concept of God is best described as “the greatest conceivable being.”  If we posited a being, Q, as God, and yet we could conceive of another being, X, who is greater than being Q, then being X—not being Q—must be the true God since nothing can be greater than God.  If God qua God is the greatest conceivable being, then He must be omnibenevolent (OB) because it is greater to be good than it is to be evil, and it is greater to be all-good than it is to be partially good.  So if there is a God, He must be OB.[1]

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