Joshua 4:5

5 said to them, Advance before me in the presence of the Lord into the midst of Jordan, and each having taken up a stone from thence, let him carry it on his shoulders, according to the number of the twelve tribes of Israel:

Joshua 4:5 Meaning and Commentary

Joshua 4:5

And Joshua said unto them
The twelve men:

pass ye over before the ark of the Lord your God into the midst of
Jordan;
that is, they were to go back to Jordan again, which they had passed over, and go into the midst of it, where were the priests bearing the ark; for it is not to be imagined that the ark went along with them, or followed them, they going before it; but they went where that was, just before it, from whence they were to take the stones, as next directed:

and take you up every man of you a stone upon his shoulder;
by which it appears they were large stones they were to take, not what they could carry in their hands, but what they were obliged to take upon their shoulders:

according unto the number of the tribes of the children of Israel;
who had that day passed over Jordan, of which these stones were to be a memorial.

Joshua 4:5 In-Context

3 and charge them; and ye shall take out of the midst of Jordan twelve fit stones, and having carried them across together with yourselves, place them in your camp, where ye shall encamp for the night.
4 And Joshua having called twelve men of distinction among the children of Israel, one of each tribe,
5 said to them, Advance before me in the presence of the Lord into the midst of Jordan, and each having taken up a stone from thence, let him carry it on his shoulders, according to the number of the twelve tribes of Israel:
6 that these may be to you continually for an appointed sign, that when thy son asks thee in future, saying, What are these stones to us?
7 then thou mayest explain to thy son, saying, The river Jordan was dried up from before the ark of the covenant of the Lord of the whole earth, when it passed it: and these stones shall be for a memorial for you for the children of Israel for ever.

The Brenton translation of the Septuagint is in the public domain.