Genesis 4:9-11
4:9 Then the Lord said to Cain, “Where is your brother Abel?” And he replied, “I don’t know! Am I my brother’s guardian?”
4:10 But the Lord said, “What have you done? The voice of your brother’s blood is crying out to me from the ground!
4:11 So now, you are banished from the ground, which has opened its mouth to receive your brother’s blood from your hand.