'As the Lord Lives' in the Bible

And the king swore, and said, As the LORD lives, that has redeemed my soul out of all distress,

Now therefore, as the LORD lives, who has established me, and set me on the throne of David my father, and who has made me a house, as he promised, Adonijah shall be put to death this day.

And Micaiah said, As the LORD lives, what the LORD says unto me, that will I speak.