Then the LORD spoke to Moses, saying,
Numbers 18:25
Surrounding context
18:24 For the tithes of the children of Israel, which they offer up as a heave offering to the LORD, I have given to the Levites as an inheritance; therefore I have said to them, "Among the children of Israel they shall have no inheritance."'
18:25 Then the LORD spoke to Moses, saying,
18:26 "Speak thus to the Levites, and say to them: "When you take from the children of Israel the tithes which I have given you from them as your inheritance, then you shall offer up a heave offering of it to the LORD, a tenth of the tithe.