This week we are looking at a very old Quartet song that has no known author. The song is They’re Under the Blood. Jesus, God's son, was crucified on a cross, even though He had the power to avoid it. When you hear that you're covered by the blood, it means that your debt of sin has been paid and you're forgiven. The physical act of Him bleeding on the cross (followed by His death and resurrection) washes away our human sins.