1 Samuel 2:16
And if any man said unto him, Let them not fail to burn the fat presently, and then take as much as thy soul desireth; then he would answer him, Nay; but thou shalt give it me now: and if not, I will take it by force.
Cross-reference
Leviticus 3:16 states that all fat is the Lord's, the very law the servant disregards by taking meat before the fat is burned.
Leviticus 7:23-25 forbids eating fat, reinforcing the seriousness of the priests' violation in taking meat before the fat is offered to God.
Micah 3:5 condemns prophets who are greedy for food, speaking only when fed, similar to the priests' greed for meat.
In 1 Peter 5:2, shepherds are told to serve willingly, not for dishonest gain — a direct contrast to the priests' forceful taking for themselves.
In 1 Peter 5:3, leaders are warned not to lord it over others — opposite of the priests' violent demands here.
In Exodus 29:13, the fat is to be burned to the Lord — the very procedure the priests violated by taking meat first.
In Leviticus 3:5, the fat is burned as an offering — the priests' sin was taking it before this was done.
Micah 2:2 describes coveting and seizing fields by force, directly analogous to the priests coveting and seizing the meat.