Numbers 18:29

Overview - Numbers 18
The charge of the priests and Levites.
The priests' portion.
21 The Levites' portion.
25 The heave offering to the priests out of the Levites' portion.
Treasury of Scripture Knowledge

Numbers 18:29  (King James Version)
Out of all your gifts ye shall offer every heave offering of the LORD, of all the best thereof, even the hallowed part thereof out of it.

Hebrew fat.