The Memorial Stones, vs. 15-24
The passage now under consideration contains much reiteration of what has already been related. This is not mere redundancy, but is emphatic of what the Lord has done and admonitory of what the people may expect Him to do hereafter.
Note that the priests did not leave their station until the Lord so commanded, a lesson for those today who might think their work complete and be impatient to move on too soon.
The Lord told Joshua when to have the priests come out with the ark, and he passed on the command to them. From the original Hebrew language of the passage it appears that, though the people passed over the river dryshod, the priests’ feet actually were planted in the water, the symbol of the divine power which stayed the flow of the river. They "lifted up" their feet from the mud of the river to the dry bank, after which the water flowed down again and spread out over the flood plain. They camped at Gilgal (though the place received its name somewhat later), about five miles from the river and some two miles east of the city of Jericho. Thus when the Lord removed His invisible dam and drained the lake which must have excited the people of Jericho very much, they could see their enemy, Israel, encamped on their threshold at Gilgal
The memorial of the stones is repeated and is now associated with the miracle of the Red Sea when its waters were parted allowing the old generation to flee across from the pursuing Egyptians when they left Egypt. As the miracle at the Red Sea identified Israel as God’s people and exemplified His power and readiness to provide all they needed, so now the new generation, forty years later, learns the same lesson anew. This should embolden them for whatever hardships they may encounter in Canaan. Then, the purpose of this spectacular event is enlarged to include all the people of the earth, that they "might know the hand of the Lord, that it is mighty," and that they might learn to fear the Lord, (1 Peter 5:6).
It will be interesting to note the many memorials which were established by Joshua and the children of Israel, of which this is the first. It will be a profitable exercise to evaluate each of these as to its special significance and learn how each one succeeding portrays the progress of the Lord’s servants in their work. This first memorial will show to those attracted by it the power of the Lord to deliver, (2 Corinthians 1:10). Let us learn also 1) children are to be taught the things of the Lord, and His power is to be made known to them to perpetual generations; 2) God uses those prepared for His service, though they may not be readily aware how, where, or when; 3) the Lord teaches His people to respect those to whom He grants positions of leadership among them.