7 then you shall tell them, ‘Because the waters of the Jordan were cut off before the ark of the covenant of Yahweh. When it passed over the Jordan, the waters of the Jordan were cut off. These stones shall be for a memorial to the children of Israel forever.’”
Matthew Henry's Commentary on Joshua 4:7
Commentary on Joshua 4:1-9
(Read Joshua 4:1-9)
The works of the Lord are so worthy of rememberance, and the heart of man is so prone to forget them, that various methods are needful to refresh our memories, for the glory of God, our advantage, and that of our children. God gave orders for preparing this memorial.