Num 18:9-9 : 9 This shall be yours of the most holy things, reserved from the fire: every offering of theirs, every grain offering of theirs, and every sin offering of theirs, and every trespass offering of theirs, which they shall render to me, shall be most holy for you and for your sons.
10 In the most holy place you shall eat it; every male shall eat it: it shall be holy to you.
11 And this is yours; the heave offering of their gift, with all the wave offerings of the children of Israel: I have given them to you, and to your sons and to your daughters with you, by a statute forever: everyone who is clean in your house shall eat of it.
12 All the best of the oil, and all the best of the wine, and of the wheat, the firstfruits of them which they shall offer to the LORD, them have I given you.
13 And whatever is first ripe in the land, which they shall bring to the LORD, shall be yours; everyone who is clean in your house shall eat of it.
14 Everything devoted in Israel shall be yours.
15 Everything that opens the womb in all flesh, which they bring to the LORD, whether it be of men or beasts, shall be yours: nevertheless the firstborn of man you shall surely redeem, and the firstling of unclean beasts you shall redeem.
16 And those that are to be redeemed from a month old you shall redeem, according to your estimation, for the money of five shekels, after the shekel of the sanctuary, which is twenty gerahs.
17 But the firstling of a cow, or the firstling of a sheep, or the firstling of a goat, you shall not redeem; they are holy: you shall sprinkle their blood upon the altar, and shall burn their fat for an offering made by fire, for a sweet aroma to the LORD.
18 And the flesh of them shall be yours, as the wave breast and as the right shoulder are yours.
19 All the heave offerings of the holy things, which the children of Israel offer to the LORD, have I given you, and your sons and your daughters with you, by a statute forever: it is a covenant of salt forever before the LORD to you and to your seed with you.
20 And the LORD spoke to Aaron, You shall have no inheritance in their land, neither shall you have any part among them: I am your part and your inheritance among the children of Israel.
21 And, behold, I have given the children of Levi all the tenth in Israel for an inheritance, for their service which they serve, even the service of the tabernacle of the congregation.
22 Neither must the children of Israel henceforth come near the tabernacle of the congregation, lest they bear sin, and die.
23 But the Levites shall do the service of the tabernacle of the congregation, and they shall bear their iniquity: it shall be a statute forever throughout your generations, that among the children of Israel they have no inheritance.
24 But the tithes of the children of Israel, which they offer as a heave offering to the LORD, I have given to the Levites to inherit: therefore I have said to them, Among the children of Israel they shall have no inheritance.
25 And the LORD spoke to Moses, saying,
26 Thus speak to the Levites, and say to them, When you take of the children of Israel the tithes which I have given you from them for your inheritance, then you shall offer up a heave offering of it for the LORD, even a tenth part of the tithe.
27 And this your heave offering shall be reckoned to you, as though it were the corn of the threshing floor, and as the fullness of the winepress.
28 Thus you also shall offer a heave offering to the LORD of all your tithes, which you receive of the children of Israel; and you shall give thereof the LORD'S heave offering to Aaron the priest.
29 Out of all your gifts you shall offer every heave offering of the LORD, of all the best thereof, even the hallowed part thereof out of it.
30 Therefore you shall say to them, When you have heaved the best thereof from it, then it shall be counted to the Levites as the increase of the threshing floor, and as the increase of the winepress.
31 And you shall eat it in every place, you and your households: for it is your reward for your service in the tabernacle of the congregation.
32 And you shall bear no sin by reason of it, when you have heaved from it the best of it: neither shall you pollute the holy things of the children of Israel, lest you die.