Deuteronomy 19:3-5

World English Bible

³ You shall prepare the way, and divide the borders of your land which Yahweh your God causes you to inherit into three parts, that every man slayer may flee there. 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.