You say it is two thousand ells, but perhaps it is four ells! (three ells for his body, and one to stretch his hands and feet). It follows (by identity that it is two thousand ells), viz.: It is written here (16:29) "place," and it is written elsewhere (in respect to the cities of refuge, 21:13) "place." Just as the latter is two thousand ells, so, the former. Thus, (the intent of) "I shall make for you a place, etc."