Charles Spurgeon Commentary Genesis 18:23-25

"And Abraham drew near, and said, Wilt thou consume the righteous with the wicked? Peradventure there are fifty righteous within the city: wilt thou consume and not spare the place for the fifty righteous that are therein? That be far from thee to do after this manner, to slay the righteous with the wicked, that so the righteous should be as the wicked; that be far from thee: shall not the Judge of all the earth do right?" — Genesis 18:23-25 (ASV)

And said, Wilt thou also destroy the righteous with the wicked? Peradventure there be fifty righteous within the city: wilt thou also destroy and not spare the place for the fifty righteous that are therein? That be far from thee to do after this manner, to slay the righteous with the wicked: and that the righteous should be as the wicked, that be far from thee: Shall not the Judge of all the earth do right?

Abraham bases his argument upon the justice of God; and when a man dares to do that, it is mighty pleading, for, depend upon it, God will never do an unjust thing. If you dare to plead his righteousness, his infallible justice, you plead most powerfully.