1The LORD also spake unto Joshua, saying,
2Speak to the children of Israel, saying, Appoint out for you cities of
refuge, whereof I spake unto you by the hand of Moses:
3That the slayer that killeth any person unawares and unwittingly may flee
thither: and they shall be your refuge from the avenger of blood.
4
And when he that doth flee unto one of those cities shall stand at the
entering of the gate of the city, and shall declare his cause in the ears of
the elders of that city, they shall take him into the city unto them, and
give him a place, that he may dwell among them.
5
And if the avenger of blood pursue after him, then they shall not deliver
the slayer up into his hand; because he smote his neighbour unwittingly, and
hated him not beforetime.
6 And he shall dwell in that city, until he stand before the congregation
for judgment, and until the death of the high priest that shall be in those
days: then shall the slayer return, and come unto his own city, and unto his
own house, unto the city from whence he fled.
7
And they appointed Kedesh in Galilee in mount Naphtali, and Shechem in
mount Ephraim, and Kirjatharba, which is Hebron, in the mountain of Judah.
8
And on the other side Jordan by Jericho eastward, they assigned Bezer in
the wilderness upon the plain out of the tribe of Reuben, and Ramoth in
Gilead out of the tribe of Gad, and Golan in Bashan out of the tribe of
Manasseh.
9These were the cities appointed for all the children of Israel, and for
the stranger that sojourneth among them, that whosoever killeth any person
at unawares might flee thither, and not die by the hand of the avenger of
blood, until he stood before the congregation.
So the Israelites selected six cites for cities of refuge: Kedesh, Shechem, Kirjatharba, Bezer, Ramoth,
and Golan.
20:1-9, Cf. 
Every Jot and Tittle: All the commandments in the Bible