'Oh' in the Bible

The one woman said, "Oh, my lord, I and this woman dwell in one house. I delivered a child with her in the house.

Then the woman whose the living child was spoke to the king, for her heart yearned over her son, and she said, "Oh, my lord, give her the living child, and in no way kill it!" But the other said, "It shall be neither mine nor yours. Divide it."