'O God' in the Bible

Now we know that whatever the Law says, it speaks to those who are under the Law, so that every mouth may be closed and all the world may become accountable to God;

yet, with respect to the promise of God, he did not waver in unbelief but grew strong in faith, giving glory to God,

For if while we were enemies we were reconciled to God through the death of His Son, much more, having been reconciled, we shall be saved by His life.

For the death that He died, He died to sin once for all; but the life that He lives, He lives to God.

Even so consider yourselves to be dead to sin, but alive to God in Christ Jesus.

and do not go on presenting the members of your body to sin as instruments of unrighteousness; but present yourselves to God as those alive from the dead, and your members as instruments of righteousness to God.

But thanks be to God that though you were slaves of sin, you became obedient from the heart to that form of teaching to which you were committed,

But now having been freed from sin and enslaved to God, you derive your benefit, resulting in sanctification, and the outcome, eternal life.

Thanks be to God through Jesus Christ our Lord! So then, on the one hand I myself with my mind am serving the law of God, but on the other, with my flesh the law of sin.

On the contrary, who are you, O man, who answers back to God? The thing molded will not say to the molder, “Why did you make me like this,” will it?

Brethren, my heart’s desire and my prayer to God for them is for their salvation.

In the same way then, there has also come to be at the present time a remnant according to God’s gracious choice.

For just as you once were disobedient to God, but now have been shown mercy because of their disobedience,

Therefore I urge you, brethren, by the mercies of God, to present your bodies a living and holy sacrifice, acceptable to God, which is your spiritual service of worship.

He who observes the day, observes it for the Lord, and he who eats, does so for the Lord, for he gives thanks to God; and he who eats not, for the Lord he does not eat, and gives thanks to God.

For it is written,“As I live, says the Lord, every knee shall bow to Me,And every tongue shall give praise to God.”

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

For he who in this way serves Christ is acceptable to God and approved by men.

Therefore in Christ Jesus I have found reason for boasting in things pertaining to God.

Now I urge you, brethren, by our Lord Jesus Christ and by the love of the Spirit, to strive together with me in your prayers to God for me,