What does Genesis 18:29 mean?
Thanks to God's gracious responses, Abraham seems to think he is negotiating with the Lord to spare Sodom. This is probably an attempt by Abraham to spare the life of his nephew, Lot, and Lot's family. The Lord has revealed that He will investigate the sins of Sodom and Gomorrah and, by implication, bring judgment upon those cities. This is not actually a negotiation, of course. Like a teacher who allows a student to "talk out" a problem, God is allowing Abraham to set an incredibly weak standard for the city of Sodom—one which will still prove more than it can live up to.Abraham started by asking if God would spare the city if He found 50 righteous people there. The Lord agreed. Then Abraham said, "What about 45?" The Lord agreed. Now Abraham goes to 40. Again, the Lord agrees.
The countdown continues in the following verses.