'O God' in the Bible

But the angel of the LORD spoke to Elijah the foreigner, "Get up and go meet the messengers from the king of Samaria. Ask them "Is it because there is no God in Israel that you're going to consult with Ekron's god Baal-zebub?

They replied, "We met a man who told us, "Go back to the king who sent you and ask him, "Is it because there is no God in Israel that you're going to consult with Baal-zebub, the god of Ekron? Therefore you won't be getting up from that bed on which you're lying. You will most certainly die!"'"

Then Elijah spoke to the king, "This is what the LORD says: "Since you sent messengers to consult with Baal-zebub, the god of Ekron is it because there is no God in Israel with whom to consult regarding his word? therefore you're not getting up from the bed on which you're lying. You certainly will die!'"

Naaman went back to the man of God, along with his entire entourage, and stood before him. "Please look!" he said. "I know that there is no God in all the earth, except in Israel! So please, take a present from your servant."