Genesis 18:29-31

New King James Version

²⁹ And he spoke to Him yet again and said, “Suppose there should be forty found there?”

So He said, “I will not do it for the sake of forty.”

³⁰ Then he said, “Let not the Lord be angry, and I will speak: Suppose thirty should be found there?”

So He said, “I will not do it if I find thirty there.”

³¹ And he said, “Indeed now, I have taken it upon myself to speak to the Lord: Suppose twenty should be found there?”

So He said, “I will not destroy it for the sake of twenty.”