Numbers 35:2 Command the children of Israel, that they give unto the Levites of the inheritance of their possession cities to dwell in; and ye shall give also unto the Levites suburbs for the cities round about them. 10 I MC VC

Joshua 21:3 And the children of Israel gave unto the Levites out of their inheritance, at the commandment of the Lord, these cities and their suburbs. 10 I MC VC