Exo 12:26-27, and Deu 6:20-21.
Verses 8-9
The children of Israel carried out these instructions. The execution is ascribed to the “children of Israel,” i.e., to the whole nations, because the men selected from the twelve tribes acted in the name of the whole nation, and the memorial was a matter of equal importance to all. ינּחוּם does not signify that they set up the stones as a memorial, but simply that they laid them down in their place of encampment. The setting up at Gilgal is mentioned for the first time in Jos 4:20. In addition to this, Joshua set up twelve stones for a memorial, on the spot where the feet of the priests had stood as they bore the ark of the covenant, which stones were there “to this day,” i.e., the time when the account was written. There is nothing to warrant our calling this statement in question, or setting it aside as a probable gloss, either in the circumstance that nothing is said about any divine command to set up these stones, or in the opinion that such a memorial would have failed of its object, as it could not possibly have remained, but would very speedily have been washed away by the stream. The omission of any reference to a command from God proves nothing, simply because divine commands are frequently hinted at but briefly, so that the substance of them has to be gathered from the account of their execution (compare Jos 3:7-8, with Jos 3:9-13, and Jos 4:2-3, with Jos 4:4-7); and consequently we may assume without hesitation that such a command was given, as the earlier commentators have done. Moreover, the monument did not fail of its object, even if it only existed for a short time. The account of its erection, which was handed down by tradition, would necessarily help to preserve the remembrance of the miraculous occurrence. But it cannot be so absolutely affirmed that these stones would be carried away at once by the stream, so that they could never be seen any more. As the priests did not stand in the middle or deepest part of the river, but just in the bed of the river, and close to its eastern bank, and it was upon this spot that the stones were set up, and as we neither know their size nor the firmness with which they stood, we cannot pronounce any positive opinion as to the possibility of their remaining. It is not likely that they remained there for centuries; but they were intended rather as a memorial for the existing generation and their children, than for a later age, which would be perpetually reminded of the miraculous help of God by the monument erected in Gilgal.
Verses 10-11
Whilst Joshua was carrying out all that Jehovah had commanded him to say to the people, according to the command of Moses-that is to say, whilst the people were passing through the Jordan before the ark, and the twelve men were carrying over the stones out of the river to the resting-place on the other side, and Joshua himself was setting up twelve stones in Jordan for a memorial-during all this time, the priests stood with the ark in the bed of the river; but after all the people, including the twelve men who took the stones out of the Jordan, had finished crossing, the ark of the Lord passed over, with the priests, before the people: that is to say, it stationed itself again, along with the priests, at the head of the people. The words “according to all that Moses had commanded Joshua” do not refer to any special instructions which Moses had given to Joshua with reference to the crossing, for no such instructions are to be found in the Pentateuch, nor can they be inferred from Num 27:23; Deu 3:28, or Deu 31:23; they simply affirm that Joshua carried out all the commands which the Lord had
