Genesis 4:8-10

New Revised Standard Version, Anglicised 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!