Deuteronomy 19:4-6

World English Bible

⁴ This is the case of the man slayer who shall flee there and live: Whoever kills his neighbor unintentionally, and didn’t hate him in time past— ⁵ as when a man goes into the forest with his neighbor to chop wood and his hand swings the ax to cut down the tree, and the head slips from the handle and hits his neighbor so that he dies—he shall flee to one of these cities and live. ⁶ Otherwise, the avenger of blood might pursue the man slayer while hot anger is in his heart and overtake him, because the way is long, and strike him mortally, even though he was not worthy of death, because he didn’t hate him in time past.