Numbers 18:8

8Then the Lord spoke to Aaron, “Behold, aI have given you charge of the contributions made to me, all the consecrated things of the people of Israel. I have given them to you bas a portion and to your sons as a perpetual due.

Numbers 18:26

26“Moreover, you shall speak and say to the Levites, ‘When you take from the people of Israel the tithe that I have given you from them for your inheritance, then you shall present a contribution from it to the Lord, ca tithe of the tithe.
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