Genesis 4:8-10

Amplified Bible

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

⁹ Then 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?” ¹⁰ The Lord said, “What have you done? The voice of your brother’s [innocent] blood is crying out to Me from the ground [for justice].^(B)