Deuteronomy 4:42
that the manslayer might flee there, who should kill his neighbour unawares and hated him not in times past and that fleeing unto one of these cities he might live:
Numbers 35:6
And among the cities which ye shall give unto the Levites, there shall be six cities for refuge, which ye shall appoint so that the manslayer may flee there; and in addition to them ye shall give them forty-two cities.
Numbers 35:11-12
then ye shall appoint yourselves cities to be cities of refuge for you that the manslayer who kills any person unawares may flee there.
Numbers 35:15-28
These six cities shall be a refuge, both for the sons of Israel and for the stranger and for the sojourner among them that anyone that kills another person unawares may flee there.
Deuteronomy 19:1-10
When the LORD thy God has cut off the Gentiles whose land the LORD thy God gives thee, and thou hast inherited them and dost dwell in their cities and in their houses,
Hebrews 6:18
that by two immutable things, in which it is impossible for God to lie, we might have a strong consolation, who have fled for refuge to lay hold upon the hope set before us,