Assumption 1: God is omnipotent.
Assumption 2: Any omnipotent being can do anything.
Validating 1: Can God destroy themselves?
Validating 2: Once destroyed can God bring themselves back?
If A1 & A2 are true, then both V1 & V2 must be true.
If V1 is true, God can’t be Omnipotent because Omnipotence precludes being destroyed.
If V2 is true, V1 can’t be true because god was not truly destroyed. If there is anything left, no destruction has happened.
Conclusion: It is not possible for an omnipotent being to exist because omnipotence is mutually exclusive with itself.