Deuteronomy 19:2-4
2
Thou shalt separate three cities for thee in the midst of thy land, which the LORD thy God giveth thee to possess it.
3
Thou shalt prepare thee a way, and divide the coasts of thy land, which the LORD thy God giveth thee to inherit, into three parts, that every slayer may flee thither.
4
And this is the case of the slayer, which shall flee thither, that he may live: Whoso killeth his neighbour ignorantly, whom he hated not in time past;
Bible text: King James Version (1769 Blayney text) · Public domain