1 Samuel 2:13-14

13And the priests' custom with the people was, when any man sacrificed a sacrifice, the priest's servant came, when the flesh was cooked, with a flesh-hook of three prongs in his hand;

14and he struck it into the pan, or kettle, or cauldron, or pot; the priest took of it all that the flesh-hook brought up. So they did in Shiloh to all the Israelites that came there.