Genesis 4:8-11

8Cain talked with Abel his brother [about what God had said]. And when they were [alone, working] in the field, Cain attacked Abel his brother and killed him.

9Then the Lord said to Cain, “Where is Abel your brother?” And he [lied and] said, “I do not know. Am I my brother’s keeper?”

10The Lord said, “What have you done? The voice of your brother’s [innocent] blood is crying out to Me from the ground [for justice].

11And now you are cursed from the ground, which has opened its mouth to receive your brother’s [shed] blood from your hand.