1. Abraham, God's friend (16-21)

The Lord didn't hide his plan to destroy the wicked Sodom. He shared it with Abraham as a friend (Isa 41:8). It is because God would make him a great and powerful nation. All nations will be blessed through the promised Messiah among his descendants. His descendants must know the righteous God. He judges the wicked but saves sinners with mercy through faith in his offspring, Jesus.

2. For the sake of ten...(22-32)

Abraham knew the wicked Sodom would not survive God's judgment. He had a great shepherd heart for Lot and the perishing Sodomites as a father of many nations. Abraham humbly yet boldly and persistently interceded with God. God was pleased with Abraham's intercessory prayers. Abraham prayed based on God's righteousness and mercy. God willingly granted to forgive Sodom if there were 50 righteous, 45, 40, 30, 20 then even only 10. (Jer 5:1) However, God had to destroy Sodom for not having even 10 righteous remnants. Still, God spared Lot accepting Abraham's wholehearted intercessory prayers (19:29).