Numbers 35:14

10 “Speak to the Israelites and tell them: When you cross the Jordan into the land of Canaan,

11 designate cities to serve as your cities of refuge, so that a person who kills someone unintentionally may flee there.

12 You are to have these cities as a refuge from the avenger, so that the manslayer will not die until he stands trial before the assembly.

13 The cities you select will be your six cities of refuge.

14 Select three cities across the Jordan and three in the land of Canaan as cities of refuge.

15 These six cities will serve as a refuge for the Israelites and for the foreigner or stranger among them, so that anyone who kills a person unintentionally may flee there.

16 If, however, anyone strikes a person with an iron object and kills him, he is a murderer; the murderer must surely be put to death.

17 Or if anyone has in his hand a stone of deadly size, and he strikes and kills another, he is a murderer; the murderer must surely be put to death.

18 If anyone has in his hand a deadly object of wood, and he strikes and kills another, he is a murderer; the murderer must surely be put to death.

Read all of Numbers 35