Book 1 5:1
Qayin and Habel brought offerings. Violence entered the earth when Qayin rose against his brother and shed innocent blood. The ground received the blood, and the murderer became a wanderer under judgment.
Book 1 5:2
The line that loved righteousness kept remembrance of the command, while those who followed violence multiplied arts without wisdom, pleasure without restraint, and strength without justice. Thus two dispositions became manifest among the children of Adam.