'O God' in the Bible

And to the Son, Thy throne, O God, for the time of time: a rod of uprightness the rod of thy kingdom.

For every chief priest taken from men is appointed for men for things to God, that he bring both gifts and sacrifices for sins:

(For the law completed nothing,) but the bringing in of a better hope; by which we draw near to God.

Wherefore he is able to save entirely those coming to God by him, always living to supplicate for them.

How much more shall the blood of Christ, who by the eternal Spirit offered himself blameless to God, purify your consciousness from dead works to serve the living God?

Then said I, Behold, I am here (in the head of the book it was written of me,) O God, to do thy will.

Then he said, Behold, I am here to do, O God, thy will. He takes away the first, that he might set up the second.

By faith Abel brought near a greater sacrifice to God than Cain, by which he was testified of to be just, God testifying of his gifts; and by it he being dead yet speaks.

And without faith it is impossible to please: for he approaching to God must believe that he is, and is a remunerator to them seeking him out.

To the assembly of people, and church of the firstborn, transcribed in the heavens, and to God the Judge of all, and. to the spirits of the just perfected,

By him therefore we should always bring up the sacrifice of praise to God, that is, the fruit of the lips assenting to his name.