'O God' in the Bible

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

At that moment, she came up to them and began to give thanks to God and to speak about the child to all who were waiting for the redemption of Jerusalem.

Now it was during this time that Jesus went out to the mountain to pray, and he spent all 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 followed Jesus, praising God. When all the people saw it, they too gave praise to God.

So he said to them, "Then give to Caesar the things that are Caesar's, and to God the things that are God's."