'O God' in the Bible

"Glory to God in the highest, and on earth peace among people {with whom he is pleased}!"

And at [that] same hour she approached [and] began to give thanks to God, and to speak about him to all those who were waiting for the redemption of Jerusalem.

Now it happened that in these days he went away to the mountain to pray, and was spending the whole night in prayer to God.

Was no one found to turn back [and] give praise to God except this foreigner?"

And immediately he regained [his] sight and began to follow him, glorifying God. And all the people, [when they] saw [it], gave praise to God.

So he said to them, "Well then, give to Caesar the things of Caesar, and to God the things of God!"