§ 02 · King James Bible
Deuteronomy 4:42
That the slayer might flee thither, which should kill his neighbour unawares, and hated him not in times past; and that fleeing unto one of these cities he might live:
Simple English
So that the person who causes death could run there to hide, the one who unexpectedly kills their neighbor and didn't hate them before. They would go to one of these cities to stay safe and live.
* Work in progress - there may be occasional inaccuracies