'O God' in the Bible

"Wherefore, it behooved him to be made like his brethren in all things, that he might be a merciful and faithful high priest in things pertaining to God, in order to make expiation for the sins of the people.

For every high priest chosen from among men, is appointed for men, in things pertaining to God, that he may offer gifts and sacrifices for sins:

(for the law made no perfect expiation), and the introduction of a better hope, by which we draw near to God.

Wherefore, he is able also to save through all time those who come to God by him, since he always lives to make intercession for them.

how much more will the blood of the Christ, who, through the eternal Spirit, offered himself without spot to God, cleanse your conscience from dead works, in order that you may serve the living God?

By faith Abel offered to God more sacrifice than Cain; on account of which he received testimony that he was righteous, God testifying of his gifts; and by it he, though dead, yet speaks.

But without faith it is impossible to please him; for he that comes to God must believe that he is, and that he is a rewarder of those who diligently seek him.

to the general assembly and church of the first-born, who are enrolled in heaven, and to God, the judge of all, and to the spirits of the just made perfect,

Through him, therefore, let us offer the sacrifice of praise to God continually, that is, the fruit of our lips, giving thanks to his name.