1. The Lord was grieved (1-13)

God looked at men's hearts. He saw that people only tried to please themselves. Marriage is the touchstone of faith. Men of God should marry women of God, but instead, they chose wives who pleased their physical senses. So marriage lost its spiritual meaning; man became flesh. He ate and drank and had sex, but he shut God out of his life (Lk 17:26,27). He produced beautiful children, but they too were men and women of flesh. God's heart was full of pain. He was grieved. Corruption and violence spread. God made a hard decision.

2. Noah found favor with God (14-22)

Noah also ate, drank, and had children. But he walked with God. God told Noah that he was going to destroy the earth. He told him to build an ark for himself, his family and the animals. Noah believed God and obeyed his word (6:22;7:5,9,16). He had the courage to live by faith (Heb 11:7). So he became the lifeline of the human race.