Genesis 18:26-32

26So the LORD replied, “If I find fifty righteous ones within the city of Sodom, on their account I will spare the whole place.”

27Then Abraham answered, “Now that I have ventured to speak to the Lord—though I am but dust and ashes— 28suppose the fifty righteous ones lack five. Will You destroy the whole city for the lack of five?”

He replied, “If I find forty-five there, I will not destroy it.”

29Once again Abraham spoke to the LORD, “Suppose forty are found there?”

He answered, “On account of the forty, I will not do it.”

30Then Abraham said, “May the Lord not be angry, but let me speak further. Suppose thirty are found there?”

He replied, “If I find thirty there, I will not do it.”

31And Abraham said, “Now that I have ventured to speak to the Lord, suppose twenty are found there?”

He answered, “On account of the twenty, I will not destroy it.”

32Finally, Abraham said, “May the Lord not be angry, but let me speak once more. Suppose ten are found there?”

And He answered, “On account of the ten, I will not destroy it.”