that the manslayer might flee there, who kills his neighbor unawares, and didn't hate him in time past; and that fleeing to one of these cities he might live:

You shall prepare you the way, and divide the borders of your land, which Yahweh your God causes you to inherit, into three parts, that every manslayer may flee there.

This is the case of the manslayer, that shall flee there and live: whoever kills his neighbor unawares, and didn't hate him in time past;

lest the avenger of blood pursue the manslayer, while his heart is hot, and overtake him, because the way is long, and strike him mortally; whereas he was not worthy of death, inasmuch as he didn't hate him in time past.