Adam Clarke's Commentary on the Bible - Joshua 3:5
Sanctify yourselves - What was implied in this command we are not informed; but it is likely that it was the same as that given by Moses, Exodus 19:10-14 . They were to wash themselves and their garments, and abstain from every thing that might indispose their minds from a profitable attention to the miracle about to be wrought in their behalf. read more
Adam Clarke's Commentary on the Bible - Joshua 3:4
About two thousand cubits - This distance they were to keep, For the greater respect, because the presence of the ark was the symbol and pledge of the Divine presence. 2. That the ark, which was to be their pilot over these waters, might be the more conspicuous which it could not have been had the people crowded upon it. read more