Numbers 18:26

26 Speak to the Levites and say to them: When you receive from the Israelites the one-tenth portion that I have given you from them as your inheritance, you also must present a gift offering to the LORD from it, a tenth from the one-tenth portion.

Numbers 18:26 Meaning and Commentary

Numbers 18:26

Thus speak unto the Levites, and say unto them
Aaron was to tell them what a provision would be made for them on account of their service, but Moses was to inform them what part Aaron was to have out of it:

when ye take of the children of Israel the tithes which I have given
you from them for your inheritance;
which was done at the time of their harvest, and of the ingathering of the fruits of the earth:

then ye shall offer up an heave offering of it for the Lord;
in token of gratitude for the liberal provision he had made for the maintenance of them:

[even] a tenth [part] of the tithe;
a tenth part out of the tenth of the produce of the land of Israel.

Numbers 18:26 In-Context

24 because I've given the Israelites' one-tenth portion, which they have raised to the LORD as a gift offering, as an inheritance to the Levites. Therefore, I've said to them, "They won't inherit land among the Israelites."

25 The LORD spoke to Moses:

26 Speak to the Levites and say to them: When you receive from the Israelites the one-tenth portion that I have given you from them as your inheritance, you also must present a gift offering to the LORD from it, a tenth from the one-tenth portion.

27 It will be considered your gift offering, like the grain of the threshing floor and what fills the winepress.

28 In this way you will also present a gift offering to the LORD from all the one-tenth portions that you take from the Israelites. You will provide from it a gift offering to the LORD for Aaron the priest.