Genesis 46:27

“And the sons of Joseph, which were born in Egypt, [were] two souls, etc.] Ephraim and Manasseh; which is observed to show that they do not come into the above reckoning, but are to be taken into another that follows: all the souls of the house of Jacob, which came into Egypt, [were] threescore and ten; here it may be observed, the phrase is varied; it is not said, “all the souls which came out of the loins of Jacob”, but “all the souls of the house” or family of Jacob; all that that consisted of, and takes in Jacob himself, the head of his house or family; nor is it said, “which came with Jacob into Egypt”, as before, but “which came into Egypt”; not which came with him thither, but yet were…”

“- Jacob Goes Down to Egypt 9. פלוּא pallû', Pallu, “distinguished.” חצרן chetsrôn, Chetsron, of the “court,” or “village.” כרמי karmı̂y, Karmi, “vine-dresser.” 10. ימוּאל yemû'êl, Jemuel, “day of El.” ימין yâmı̂yn, Jamin, “right hand.” אהד 'ôhad, Ohad, “joining together.” יכין yâkı̂yn, Jakin, “he shall establish.” צחר tsôchar, Tsochar, “whiteness.” 11. גרשׁון gêreshôn, Gereshon, “expelling.” קהת qehâth, Qehath, “assembly.” מררי merârı̂y, Merari, “flowing, bitter.” 12. חמוּל châmûl, Chamul, “pitied, treated with mercy.” 13. תולע tôlâ‛, Tola‘, “worm, scarlet.” פוּה pû'âh, Puvvah, “mouth?” יוב yôb, Job, “enemy?” שׂמרן śı̂mrôn, Shimron, “watch.” 14. סרד sered, Sered, “fear.”…”

“46:27 The total seventy includes Joseph, Ephraim, Manasseh, and Jacob. Seventy is also a symbolic number for perfection or completion (see “Symbolic Numbers” Theme Note). From these seventy (i.e., all Israel) would grow the nation of Israel that would bless the seventy nations (i.e., all the nations) of the world (see study note on Gen 10:2-32; cp. 12:3).”