Leviticus 3:3-5 NIV

3 From the fellowship offering you are to bring a food offering to the LORD: the internal organs and all the fat that is connected to them,

References for Leviticus 3:3

4 both kidneys with the fat on them near the loins, and the long lobe of the liver, which you will remove with the kidneys.

References for Leviticus 3:4

5 Then Aaron’s sons are to burn it on the altar on top of the burnt offering that is lying on the burning wood; it is a food offering, an aroma pleasing to the LORD.

References for Leviticus 3:5