Noah told the people to repent. He told them to believe in Jesus Christ. He told them to be baptized. Then the Holy Ghost would help them. The wicked people did not listen to Noah. They did not repent. They tried to kill Noah.
Noah thanked God for saving their lives. He built an altar. He burned sacrifices. God promised Noah he would never again send a flood to cover the earth. God put a rainbow in the sky. The rainbow helps people remember God’s promise to Noah.