'O God' in the Bible

They were given help against them, and the Hagrites were handed over to them, and all who were allied with them; for they cried out to God [for help] in the battle; and He granted their entreaty because they relied on and trusted in Him.

So all Israel was enrolled by genealogies; and they are written in the Book of the Kings of Israel. And Judah was carried away into exile to Babylon because of their unfaithfulness [to God].

Then say, “Save us, O God of our salvation;Gather us together and rescue us from the nations,That we may give thanks to Your holy name,And glory in Your praise.”

This was a small thing in Your eyes, O God; but You have spoken of Your servant’s house for a great while to come, and have regarded me according to the standard and estate of a man of high degree (prominence), O Lord God.

Then David said to God, “I have sinned greatly because I have done this thing. But now, I beseech You, take away the wickedness and guilt of Your servant, for I have acted very foolishly.”

David said to God, “Is it not I who commanded the people to be counted? I am the one who has sinned and done evil; but as for these sheep [the people of Israel], what have they done? O Lord my God, please let Your hand be against me and my father’s house, but not against Your people that they should be plagued.”

and Jerijah’s relatives, 2,700 capable men, were heads of fathers’ households; and King David made them overseers of the Reubenites, the Gadites, and the half-tribe of Manasseh, for everything pertaining to God and to the king.