The words "like unto fishes" were used by Jacob for the purpose of intimating the manner of death awaiting the Ephraimites, the descendants of Joseph. As fish are caught by their mouth, so the Ephraimites were in later days to invite their doom by their peculiar lisp. At the same time, Jacob's words contained the prophecy that Joshua the son of the man Nun, the "fish," would lead Israel into the Holy Land. And in his words lay still another prophecy, with reference to the sixty thousand men children begot in the same night as Moses, all cast into the river with him, and saved for the sake of his merits. The number of boys thrown to the fishes in the river that night was equal to the number of men in Israel upon the earth.