'O God' in the Bible

Solomon said to God, “You have dealt with my father David with great lovingkindness, and have made me king in his place.

He said, “O Lord, the God of Israel, there is no god like You in heaven or on earth, keeping covenant and showing lovingkindness to Your servants who walk before You with all their heart;

Have you not driven out the priests of the Lord, the sons of Aaron and the Levites, and made for yourselves priests like the peoples of other lands? Whoever comes to consecrate himself with a young bull and seven rams, even he may become a priest of what are no gods.

They buried him in the city of David among the kings, because he had done well in Israel and to God and His house.

Now therefore, do not let Hezekiah deceive you or mislead you like this, and do not believe him, for no god of any nation or kingdom was able to deliver his people from my hand or from the hand of my fathers. How much less will your God deliver you from my hand?’”