Chp. 4 verse 19 - Chp. 6 verse 8: Lemech kills Kayin. Adam and Chavah give birth to a third son Sheis, as well as additional children. Mankind grows from generation to generation and their numbers increase. There are ten generations from Adam until Noach, which include two righteous individuals, Chanoch and Mesushelech. However, mankind turns evil and practiced immorality and violence. Noach however found favor in G-d's eyes.