'O God' in the Bible

Now we know that whatever the law says, it speaks to those under the law, in order that every mouth may be closed and the whole world may become accountable to God.

And he did not waver in unbelief at the promise of God, but was strengthened in faith, giving glory to God

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

For that [death] he died, he died to sin once and never again, but that [life] he lives, he lives to God.

So also you, consider yourselves to be dead to sin, but alive to God in Christ Jesus.

and do not present your members to sin [as] instruments of unrighteousness, but present yourselves to God as those who are alive from the dead, and your members to God [as] instruments of righteousness.

But thanks [be] to God that you were slaves of sin, but you have obeyed from the heart the pattern of teaching to which you were entrusted,

But now, having been set free from sin and having been enslaved to God, you have your fruit [leading] to sanctification, and its end [is] eternal life.

Thanks [be] to God through Jesus Christ our Lord! So then, I myself with my mind am enslaved to the law of God, but with my flesh [I am enslaved] to the law of sin.

On the contrary, O man, who are you who answers back to God? Will what is molded say to the one who molded [it], "Why did you make me like this"?

Brothers, the desire of my heart and my prayer to God on behalf of them [is] for [their] salvation.

God has not rejected his people, whom he foreknew! Or do you not know, in [the passage about] Elijah, what the scripture says--how he appeals to God against Israel?

For just as you formerly were disobedient to God, but now have been shown mercy because of the disobedience of these,

Therefore I exhort you, brothers, through the mercies of God, to present your bodies [as] a living sacrifice, holy [and] pleasing to God, [which is] your reasonable service.

The one who is intent on the day is intent on [it] for the Lord, and the one who eats eats for the Lord, because he is thankful to God, and the one who does not eat does not eat for the Lord, and he is thankful to God.

For the one who serves Christ in this [way] [is] well-pleasing to God and approved by people.

Now I exhort you, brothers, through our Lord Jesus Christ and through the love of the Spirit, to contend along with me in your prayers on my behalf to God,