Deuteronomy 19:5-7

Douay-Rheims 1899 American Edition

⁵ But to have gone with him to the wood to hew wood, and in cutting down the tree the axe slipped out of his hand, and the iron slipping from the handle struck his friend, and killed him: he shall flee to one of the cities aforesaid, and live:

⁶ Lest perhaps the next kinsman of him whose blood was shed, pushed on by his grief should pursue, and apprehend him. if the way be too long, and take away the life of him who is not guilty of death, because he is proved to have had no hatred before against him that was slain.

⁷ Therefore I command thee, that thou separate three cities at equal distance one from another.