C. F. Keil and Franz Delitzsch on Joshua 4:19

Jos 4:19

The crossing took place on the tenth day of the first month, that is to say, on the same day on which, forty years before, Israel had begun to prepare for going out of Egypt by setting apart the paschal lamb (Exo 12:3). After crossing the river, the people encamped at Gilgal, on the eastern border of the territory of Jericho. The place of encampment is called Gilgal proleptically in Jos 4:19 and Jos 4:20 (see at Jos 5:9).