Deuteronomy 4:42
Someone could flee there who committed manslaughter, killing his neighbor accidentally without previously hating him. He could flee to one of these cities and stay alive:
Numbers 35:6
“The cities you give the Levites will include six cities of refuge,
Numbers 35:11-12
designate cities to serve as cities of refuge for you, so that a person who kills someone unintentionally may flee there.
Numbers 35:15-28
These six cities will serve as a refuge for the Israelites and for the foreigner or temporary resident among them, so that anyone who kills a person unintentionally may flee there.
Deuteronomy 19:1-10
“When the Lord your God annihilates the nations whose land He is giving you,
Hebrews 6:18
so that through two unchangeable things, in which it is impossible for God to lie, we who have fled for refuge might have strong encouragement to seize the hope set before us.