1 Samuel 2:13-17

13Now this was the custom of the kohanim with the people: whenever any man offered a sacrifice, the kohen’s servant would come along, while the meat was boiling, with a three-pronged fork in his hand,

14and he would thrust it into the pan, or kettle, or caldron or pot. Whatever the fork brought up, the kohen would take for himself. This is how they dealt with all the Israelites who came there to Shiloh.

15Even before they burned the fat, the kohen’s servant would come and say to the one offering sacrifice, “Give the kohen meat for roasting, since he will not accept boiled meat from you—only raw.”

16If the man said to him, “Let them first burn the fat up as smoke, and then take as much as you desire,” he would reply, “No! But you must give it now—otherwise, I will take it by force.”

17Thus the sin of the young men was very great before Adonai, for the men despised the offering of Adonai.