Genesis 4:8-10

New Revised Standard Version Catholic Edition

⁸ Cain said to his brother Abel, “Let us go out to the field.”^[a] And when they were in the field, Cain rose up against his brother Abel, and killed him. ⁹ Then the Lord said to Cain, “Where is your brother Abel?” He said, “I do not know; am I my brother’s keeper?” ¹⁰ And the Lord said, “What have you done? Listen; your brother’s blood is crying out to me from the ground!