Deuteronomy 19:2

Thou shalt separate three cities for thee There were to be six cities of refuge in all, but Moses had already appointed three on that side of Jordan where they now were. See Numbers 35:14;

Deuteronomy 4:41. In the midst of thy land That is, in the midst of the several parts or districts of thy land, or within thy land; for had they been all three in the very heart of the country, the very intention of them would have been counteracted: which was, that they should be so conveniently placed in several parts of the country, that men might easily and speedily flee to them.