Hastings' Dictionary of the Bible (1898)
LIVER. The expression "the caul above the liver," so frequently occurring in the Pentateuch, Ex 29:13, Josh 11:22; Lev 3:4, 1 Kgs 16:10, 2 Sam 20:15; Ruth 4:9; Acts 7:4; Lev 8:16; Lev 9:10, etc., means one of the lobes of the liver, which was to be burned on the altar, and not eaten as sacrificial food.