Commentaries:
Jamieson, Fausset, and Brown
Joshua said unto the people—rather "had said," for as he speaks of "to-morrow," the address must have been made previous to the day of crossing, and the sanctification was in all probability the same as Moses had commanded before the giving of the law, consisting of an outward cleansing (Exodus 19:10-15) preparatory to that serious and devout state of mind with which so great a manifestation should be witnessed.
Other Jamieson, Fausset, and Brown entries containing Joshua 3:5:
Deuteronomy 31:9-13
Joshua 3:1
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