'O God' in the Bible

And Abraham said to God, “Oh that Ishmael might live before You!”

Abraham prayed to God, and God healed Abimelech and his wife and his maids, so that they bore children.

Jacob said, “O God of my father Abraham and God of my father Isaac, O Lord, who said to me, ‘Return to your country and to your relatives, and I will prosper you,’

Then God said to Jacob, “Arise, go up to Bethel and live there, and make an altar there to God, who appeared to you when you fled from your brother Esau.”

and let us arise and go up to Bethel, and I will make an altar there to God, who answered me in the day of my distress and has been with me wherever I have gone.”

Then they said to him, “We have had a dream and there is no one to interpret it.” Then Joseph said to them, “Do not interpretations belong to God? Tell it to me, please.”