"If you once embraced GOD and were attempting to do his work, how do you know Satan did not lure you away from GOD.
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Sorry, but disbelief in deities also includes disbelief in Satan, another supernatural entity I don't believe in. The two go together.
You know, Satan is fine with you not believing in him. Just so long as you don't accept belief in God and reject the message of Christ, Satan chalks that up as a victory for his side.