Genesis 4:8-9

New International Version

⁸ Now Cain said to his brother Abel, “Let’s go out to the field.”^[a] While they were in the field, Cain attacked his brother Abel and killed him.^(A)

⁹ Then the Lord said to Cain, “Where is your brother Abel?”^(B)

“I don’t know,^(C)” he replied. “Am I my brother’s keeper?”