Numbers 18:23-25

New Revised Standard Version, Anglicised

²³ But the Levites shall perform the service of the tent of meeting, and they shall bear responsibility for their own offences; it shall be a perpetual statute throughout your generations. But among the Israelites they shall have no allotment, ²⁴ because I have given to the Levites as their portion the tithe of the Israelites, which they set apart as an offering to the Lord. Therefore I have said of them that they shall have no allotment among the Israelites.

²⁵ Then the Lord spoke to Moses, saying: