'Oh' in the Bible

And Jabez called on the God of Israel, saying, Oh that thou wouldest bless me indeed, and enlarge my border, and that thy hand might be with me, and that thou wouldest keep me from evil, that it be not to my sorrow! And God granted him that which he requested.

And David longed, and said, Oh that one would give me water to drink of the well of Beth-lehem, which is by the gate!