'O God' in the Bible

So God gave them up in the lusts of their hearts to impurity, to the dishonoring of their own bodies;

For the death that he died, he died unto sin once for all; but the life that he lives he is living unto God.

Even so count yourselves also to be dead unto sin, but alive unto God in Christ Jesus.

Do not continue to present any part of your body to sin to be used as a weapon of unrighteousness. On the contrary, be presenting yourselves to God, as alive from the dead, and the various parts of your bodies to be used as weapons of righteousness.

"Nay, but who are you, O man, that replies to God? Shall the thing formed say unto him who formed it, "Why did you do me like this?"

Brothers, the longing of my heart and my prayer to God is for my countrymen, that they may be saved.

For if their casting out is the reconciliation of the world to God, what will their restoration be but life out of death?

And as in times past you were yourselves disobedient to God, but now, thanks to their disobedience, have obtained mercy;

I entreat you therefore, brothers, by the mercies of God, to present your bodies to Him as a living sacrifice, holy and acceptable to God. This is your reasonable service of worship.

For it is written, "As I live," says the Lord, "to me every knee shall bow, And to God shall every tongue confess."

So then each one of us shall give account of himself to God.

Those who are slaving for Christ devotedly in these ways, are well pleasing to God and highly commended by man.

Brothers, I beseech you, by Jesus Christ our Lord, and by the love which the Spirit gives, to help me in my struggle by your prayers to God on my behalf,