'O God' in the Bible

But about the Son he says, "Your throne, O God, is forever and ever, and the scepter of your kingdom is a righteous scepter.

thereby becoming like his brothers in every way, so that he could be a merciful and faithful high priest in service to God and could atone for the people's sins.

For every high priest selected from among men is appointed to officiate on their behalf in matters relating to God, that is, to offer gifts and sacrifices for sins.

As a mortal man, he offered up prayers and appeals with loud cries and tears to the one who was able to save him from death, and he was heard because of his devotion to God.

Therefore, because he always lives to intercede for them, he is able to save completely those who come to God through him.

how much more will the blood of the Messiah, who through the eternal Spirit offered himself unblemished to God, cleanse our consciences from dead actions so that we may serve the living God!

Then I said, "See, I have come to do your will, O God' In the volume of the scroll this is written about me."

By faith Abel offered to God a better sacrifice than Cain did, and by faith he was declared to be righteous, since God himself accepted his offerings. And by faith he continues to speak, even though he is dead.