"Speak to the children of Israel, saying, 'You shall eat no fat, of bull, or sheep, or goat.
The priest shall burn them on the altar: it is the food of the offering made by fire, for a pleasant aroma; all the fat is Yahweh's.
"'It shall be a perpetual statute throughout your generations in all your dwellings, that you shall eat neither fat nor blood.'"
The fat of that which dies of itself, and the fat of that which is torn of animals, may be used for any other service, but you shall in no way eat of it.
1 Samuel 2:15-16
Yes, before they burnt the fat, the priest's servant came, and said to the man who sacrificed, "Give meat to roast for the priest; for he will not accept boiled meat from you, but raw." If the man said to him, "Let the fat be burned first, and then take as much as your soul desires;" then he would say, "No, but you shall give it to me now; and if not, I will take it by force."
Take your father and your households, and come to me, and I will give you the good of the land of Egypt, and you will eat the fat of the land.'
Yes, he would have allured you out of distress, into a broad place, where there is no restriction. That which is set on your table would be full of fatness.
The wild oxen will come down with them, and the young bulls with the mighty bulls; and their land will be drunken with blood, and their dust made greasy with fat.
Yahweh's sword is filled with blood. It is covered with fat, with the blood of lambs and goats, with the fat of the kidneys of rams; for Yahweh has a sacrifice in Bozrah, And a great slaughter in the land of Edom.
You eat the fat, and you clothe yourself with the wool, you kill the fatlings; but you don't feed the sheep.
You shall eat fat until you be full, and drink blood until you are drunk, of my sacrifice which I have sacrificed for you.
"You shall not offer the blood of my sacrifice with leavened bread, neither shall the fat of my feast remain all night until the morning.