'O God' in the Bible

"If any one wills to do God's will he shall know concerning my teaching, whether it is from God, or I speak my own authority. Dedicate them in thy truth; thy word is truth."

"He who is from God listens to God's words. For this reason you do not listen, because you are not from God."

"Give glory to God! we know that this man is a sinner." Upon this the blind man answered. "I do not know if he is a sinner. One thing I do know, that once I was blind, and know I can see."

and was now going to God, rose from supper, laid aside his upper garments, and took a towel and girded himself.