On the tenth day of the first month - As the Israelites left Egypt on the fifteenth day of the first month, A.M. 2513, (see Exodus 14:1-31), and they entered into Canaan the tenth of the first month, A.M. 2553, it is evident that forty years, wanting five days, had elapsed from the time of their exodus from Egypt to their entrance into the promised inheritance.
Encamped in Gilgal - That is, in the place that was afterwards called Gilgal, see Joshua 5:9; for here the name is given it by anticipation. In Hebrew, גל gal signifies to roll; and the doubling of the root, גלגל galgal or gilgal, signifies rolling round and round, or rolling off or away, because, in circumcising the children that had been born in the wilderness, Joshua rolled away, rolled off completely, the reproach of the people. From this time Gilgal became a place of considerable eminence in the sacred history.
8. There the ark was fixed till, after the conquest of the country, it was removed to Shiloh. Gilgal was about ten furlongs from Jericho, and fifty from Jordan: Jericho being on the west, and Jordan on the east, Gilgal being between both. See Josephus, De Bello, etc., lib. v., c. 4, and Calmet on this place. Calmet supposes there was neither city nor town here before the arrival of the Israelites.
Gilgal, mentioned here by anticipation (compare Joshua 5:9), the modern Jiljulieh (Conder), was on rising ground (compare Joshua 5:3), and, according to Josephus, nearly five miles from the river, and consequently about two from the city itself. The site of the camp was no doubt fortified by Joshua, as it constituted for some time the abiding foothold in Canaan, from where he sallied forth to subdue the country. It was also the place of safety where the ark, and no doubt also the women, children, cattle, and other property of the people were left. Hence, the demolition of Jericho and Ai, strong fortresses in the neighborhood of Gilgal, was no doubt dictated by sound policy as well as by religious obligations.