Genesis 18:27-29

King James Version

²⁷ And Abraham answered and said, Behold now, I have taken upon me to speak unto the Lord, which am but dust and ashes:

²⁸ Peradventure there shall lack five of the fifty righteous: wilt thou destroy all the city for lack of five? And he said, If I find there forty and five, I will not destroy it.

²⁹ And he spake unto him yet again, and said, Peradventure there shall be forty found there. And he said, I will not do it for forty's sake.