Tanach sobre Números 35:9

for a murderer to escape there, who has murdered his neighbor without intent, and he had not been his enemy yesterday [or] the day before. He is to flee to one of these cities to survive:

When Adonoy, your God, annihilates the nations whose land Adonoy, your God is giving you; and you inherit them and live in their cities and in their houses;

But if he did not lie in wait [to ambush him] but God brought it to his hand, then I will designate for you a place, to which he can flee [and find refuge].