'O God' in the Bible

And have cast their gods into the fire: for they were no gods, but the work of men's hands, wood and stone: therefore they have destroyed them.

Ye are my witnesses, saith the LORD, and my servant whom I have chosen: that ye may know and believe me, and understand that I am he: before me there was no god formed, neither shall there be after me.

Thus saith the LORD the King of Israel, and his redeemer the LORD of hosts; I am the first, and I am the last; and besides me there is no God.

Fear ye not, neither be afraid: have not I told thee from that time, and have declared it? ye are even my witnesses. Is there a God besides me? verily there is no God; I know not any.

I am the LORD, and there is none else, there is no God besides me: I girded thee, though thou hast not known me:

Thus saith the LORD, The labor of Egypt, and merchandise of Cush and of the Sabeans, men of stature, shall come over to thee, and they shall be thine: they shall come after thee; in chains they shall come over, and they shall fall down to thee, they shall make supplication to thee, saying, Surely God is in thee; and there is none else, there is no God.

Verily thou art a God that hidest thyself, O God of Israel, the Savior.

Tell ye, and bring them near; yes, let them take counsel together: who hath declared this from ancient time? who hath told it from that time? have not I the LORD? and there is no God else besides me; a just God and a Savior; there is none besides me.

Yet they seek me daily, and delight to know my ways, as a nation that did righteousness, and forsook not the ordinance of their God: they ask of me the ordinances of justice; they take delight in approaching to God.

For since the beginning of the world men have not heard, nor perceived by the ear, neither hath the eye seen, O God, besides thee, what he hath prepared for him that waiteth for him.