Commentaries:
Adam Clarke
Shalt thou add three cities more - This was afterwards found necessary, and accordingly six cities were appointed, three on either side Jordan. See Joshua 21:1-3, etc. In imitation of these cities of refuge the heathens had their asyla, and the Catholics their privileged altars. See Exodus 21:13 (note), Exodus 21:14 (note), and Numbers 35:11 (note), etc.
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