1 Samuel 2:12-17

Now the sons of Eli were base men; they knew not Jehovah. And the custom of the priests with the people was, that, when any man offered sacrifice, the priest’s servant came, while the flesh was boiling, with a flesh-hook of three teeth in his hand; and he struck it into the pan, or kettle, or caldron, or pot; all that the flesh-hook brought up the priest took therewith. So they did in Shiloh unto all the Israelites that came thither. Yea, before they burnt the fat, the priest’s servant came, and said to the man that sacrificed, Give flesh to roast for the priest; for he will not have boiled flesh of thee, but raw. And if the man said unto him, They will surely burn the fat first, and then take as much as thy soul desireth; then he would say, Nay, but thou shalt give it me now: and if not, I will take it by force. And the sin of the young men was very great before Jehovah; for the men despised the offering of Jehovah.