'O God' in the Bible

For this therefore the Jews sought the more to kill him, for not only did he loose the sabbath, but also he called God his own Father, making himself equal to God.

Then called they the man of a second time, who was blind, and said to him, Give glory to God: we know that this man is sinful.

Jesus knowing that the Father has given all things to him into the hands, and that he came out from God, and retired to God;

They shall make you excluded from the synagogue: but the hour comes that every one having slain you should think to bring service to God.