Genesis 18:26-33

So the LORD said, “If I find within the city of Sodom fifty righteous [people], then I will spare the entire place for their sake.” Abraham answered, “Now behold, I who am but dust [in origin] and ashes have decided to speak to the Lord. [Gen 3:19; Job 30:19] If five of the fifty righteous are lacking, will You destroy the entire city for lack of five?” And He said, “If I find [at least] forty-five [righteous people] there, I will not destroy it.” Abraham spoke to Him yet again and said, “Suppose [only] forty are found there.” And He said, “I will not do it for the sake of the forty [who are righteous].” Then Abraham said [to Him], “Oh, may the Lord not be angry, and I will speak; suppose thirty [righteous people] are found there?” And He said, “I will not do it if I find thirty there.” And he said, “Now behold, I have decided to speak to the Lord [again]. Suppose [only] twenty [righteous people] are found there?” And the Lord said, “I will not destroy it for the sake of the twenty.” Then Abraham said, “Oh may the Lord not be angry [with me], and I will speak only this once; suppose ten [righteous people] are found there?” And He said, “I will not destroy it for the sake of the ten.” As soon as He had finished speaking with Abraham the LORD departed, and Abraham returned to his own place.