God is almost omnipotent. He has many limits.

[Kayenneh]

But it is not in his nature to do sinful things.

You're right, and thanks for pointing out such a wonderful thing. Scripture does not say God ever sinned, show me scripture to prove this statement.

Oh please!

Thou shalt not kill

Here we have it killing 70 people: But God struck down some of the inhabitants of Beth Shemesh, putting seventy of them to death because they looked into the ark of the Lord. The people mourned because of the heavy blow the Lord had dealt them.

And here, because someone dared to steady a load: 6 When they came to the threshing floor of Nakon, Uzzah reached out and took hold of the ark of God, because the oxen stumbled. 7 The Lord’s anger burned against Uzzah because of his irreverent act; therefore God struck him down, and he died there beside the ark of God.

There's quite nothing like slaughter: 5 Then I heard the Lord say to the other men, “Follow him through the city and kill everyone whose forehead is not marked. Show no mercy; have no pity! 6 Kill them all—old and young, girls and women and little children. But do not touch anyone with the mark. Begin right here at the Temple.” So they began by killing the seventy leaders.
7 “Defile the Temple!” the Lord commanded. “Fill its courtyards with corpses. Go!” So they went and began killing throughout the city.