'Oh' in the Bible

So they cried out to the Lord, "Oh, please, Lord, don't let us die on account of this man! Don't hold us guilty of shedding innocent blood. After all, you, Lord, have done just as you pleased."

He prayed to the Lord and said, "Oh, Lord, this is just what I thought would happen when I was in my own country. This is what I tried to prevent by attempting to escape to Tarshish! -- because I knew that you are gracious and compassionate, slow to anger and abounding in mercy, and one who relents concerning threatened judgment.