We meet with many passages in the Bible, of the Lord's directing his people to gratify the enquiry of their children in all questions of divine things. And what can be more sweet or more suited to the situation of creatures such as we are, passing away one generation after another, than to hand down from father to son the gracious works of God. Exodus 12:26-27; Deuteronomy 6:19. I only detain the Reader to remark, that the Lord hath appointed the memorandum of one mercy, to connect with it the remembrance of another. The drying up of Jordan was to be the introduction of rehearsing the drying up the Red Sea, though there was forty years distance between those events. Our God, our Jesus is the same, yesterday, to-day, and forever. As he was with our fathers so is he with us, for his mercy endureth forever.
Related Commentaries of Joshua 4:21
Joshua 4:21-24
21 And he spake unto the children of Israel, saying, When your children shall ask their fathers in time to come, saying, What mean these stones?
22 Then ye shall let your children know, saying, Israel came over this Jordan on dry land.
23 For the LORD your God dried up the waters of Jordan from before you, until ye were passed over, as the LORD your God did to the Red sea, which he dried up from before us, until we were gone over:
24 That all the people of the earth might know the hand of the LORD, that it is mighty: that ye might fear the LORD your God for ever.b