'Oh' in the Bible

Say to the people, ‘Consecrate yourselves for tomorrow, and you shall eat meat; for you have wept in the ears of the Lord, saying, “Oh that someone would give us meat to eat! For we were well-off in Egypt.” Therefore the Lord will give you meat and you shall eat.

Then Aaron said to Moses, “Oh, my lord, I beg you, do not account this sin to us, in which we have acted foolishly and in which we have sinned.

Oh, do not let her be like one dead, whose flesh is half eaten away when he comes from his mother’s womb!”