Joshua 5:3 - Matthew Poole's English Annotations on the Holy Bible

i.e. He caused this to be done; and because it was to be done speedily, the passover approaching, it was necessary to use many hands in it, either priests and Levites, or other circumcised persons, who, at least in those circumstances, were permitted to do it. The children of Israel, i.e. such of them as were uncircumcised. And though it be not mentioned, it is more than probable, that the Israelites beyond Jordan were circumcised at the same time.