'Oh' in the Bible

And Moses said unto Jehovah, Oh, Lord, I am not eloquent, neither heretofore, nor since thou hast spoken unto thy servant; for I am slow of speech, and of a slow tongue.

And he said, Oh, Lord, send, I pray thee, by the hand of him whom thou wilt send.

and the sons of Israel say unto them, 'Oh that we had died by the hand of Jehovah in the land of Egypt, in our sitting by the flesh-pot, in our eating bread to satiety -- for ye have brought us out unto this wilderness to put all this assembly to death with hunger.'

And Moses returned unto the LORD, and said, Oh, this people have sinned a great sin, and have made them gods of gold.