All this happened on one day, on the same day on which the Jordan was crossed, and the assembly was held on Gerizim and Ebal, the day on which the people arrived at Gilgal, where they left the stones of which the altar had been built. At Gilgal Joshua performed the rite of circumcision on those born in the desert, who had remained uncircumcised on account of the rough climate and for other reasons.
And here it was that the manna gave out. It had ceased to fall at the death of Moses, but the supply that had been stored up had lasted some time longer. As soon as the people were under the necessity of providing for their daily wants, they grew negligent in the study of the Torah. Therefore the angel admonished Joshua to loose his shoes from off his feet, for he was to mourn over the decline of the study of the Torah, and bare feet are a sign of mourning.
The angel reproached Joshua in particular with having allowed the preparations for war to interfere with the study of the Torah and with the ritual service. Neglect of the latter might be a venial sin, but neglect of the former is worthy of condign punishment. At the same time the angel assured Joshua that he had come to aid him, and he entreated Joshua not to draw back from him, like Moses, who had refused the good offices of the angel. He who spoke to Joshua was none other than the archangel Michael.