Gen 18:26 And Jehovah said, If I find in Sodom fifty righteous within the city, then I will spare all the place for their sakes.

Gen 18:29 And he spoke to Him yet again, and said, Peradventure there shall be forty found there. And He said, I will not do it.

Gen 18:30 And he said to Him, Peradventure there shall thirty be found there. And He said, I will not do it.