Deuteronomy 19:2

Overview - Deuteronomy 19
The cities of refuge.
The privilege thereof for the manslayer.
14 The land-mark is not to be removed.
15 Two witnesses at the least are required.
16 The punishment of a false witness.
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Deuteronomy 19:2  (King James Version)
Thou shalt separate three cities for thee in the midst of thy land, which the LORD thy God giveth thee to possess it.

separate three cities
Unquestionably in imitation of these cities, the heathen had their {asyla,} and the Roman Catholics their privileged altars: and similar traditions seem to obtain in many barbarous nations, for "the North American Indian nations have most of them either a house or town of refuge, which is a sure asylum to protect a manslayer, or the unfortunate captive, if he once enter it. In almost every Indian nation, there are several towns, which are called old beloved, ancient, holy, or white towns, (white being their fixed emblem of peace, friendship, prosperity, happiness, purity, etc.) They seem to have been formerly towns of refuge; for it is not in the memory of the oldest people that human blood was shed in them."
4:41-43 Exodus 21:13 ; Numbers 35:10-15 ; Joshua 20:2-7 ; Hebrews 6:18