Levítico 3:9

9 From the fellowship offering you are to bring a food offering to the Lord: its fat, the entire fat tail cut off close to the backbone, the internal organs and all the fat that is connected to them,

9 And he shall offer of the sacrifice of peace-offerings an offering made by fire unto Jehovah; the fat thereof, the fat tail entire, he shall take away hard by the backbone; and the fat that covereth the inwards, and all the fat that is upon the inwards,