Chp. 3 verse 22 - Chp. 4 verse 18: Hashem drives them out of the garden. He places a fiery angel at the entrance to guard it. Chp. 4, Chavah gives birth to Kayin and Hevel. They both bring offerings to G-d, but only Hevel's is accepted. Kayin is despondent and kills Hevel. G-d punishes him with being a wanderer for seven generations. He has a son whom he names Chanoch.