19. And the people came up, etc Why the day on which they entered the land, and first encamped in it, is marked, we shall see in next chapter. But the name of Gilgal is given to the first station by anticipation, for this new name was afterwards given to it by Joshua on the renewal of circumcision; its etymology will be explained in its own place. Moreover, the thing here principally treated of is the monument of twelve stones; for though it was formerly mentioned, a kind of solemn dedication is now related, namely, that Joshua not only erected a mound, but called the attention of the people to its use in enabling fathers to keep the memory of the divine goodness alive among their children. From his introducing the children asking, What mean these stones? we infer that they were arranged so as to attract the notice of spectators. For had they been heaped together at random without any order, it would never have come into the mind of posterity to inquire concerning their meaning. There must therefore have been something so remarkable in their position as not to allow the sight to be overlooked.
Moreover, because the covenant by which God had adopted the race of Abraham was firm in an uninterrupted succession for a thousand generations, the benefit which God had bestowed on the deceased fathers is, on account of the unity of the body, transferred in common to their children who were born long after. And the continuation must have more strongly awakened their attention, inasmuch as posterity were in this way reminded that what had long ago been given to their ancestors belonged to them also. The answer of the parents would have been coldly listened to had the divine favor been confined to a single day. But when the sons’ sons hear that the waters of Jordan were dried up many ages before they were born, they acknowledge themselves to be the very people towards whom that wonderful act of divine favor had been manifested. The same account is to be given of the drying up of the Red Sea, though the event was not very ancient. It is certain that of those who had come out of Egypt, Caleb and Joshua were the only survivors, and yet he addresses the whole people as if they had been eye-witnesses of the miracle. God dried up the Red Sea before our face; in other words, it was done in virtue of the adoption which passed without interruption from the fathers to the children. Moreover, it was worth while to call the passage of the Red Sea to remembrance, not only that the similarity of the miracle might cause belief, but that on hearing the story of the Jordan, that former miracle might be at the same time renewed, although no visible symbol of it was present to the eye.