Genesis 4:10

4:10 But the Lord said, “What have you done? The voice of your brother’s blood is crying out to me from the ground!

Genesis 27:22

27:22 So Jacob went over to his father Isaac, who felt him and said, “The voice is Jacob’s, but the hands are Esau’s.”

sn What have you done? Again the Lord’s question is rhetorical (see Gen 3:13), condemning Cain for his sin.

tn The word “voice” is a personification; the evidence of Abel’s shed blood condemns Cain, just as a human eyewitness would testify in court. For helpful insights, see G. von Rad, Biblical Interpretations in Preaching; and L. Morris, “The Biblical Use of the Term ‘Blood,’” JTS 6 (1955/56): 77-82.