Exodus 1:5

And all the souls that came out of the loins of Jacob were seventy souls ,.... "Souls" are put for persons; of the number seventy, and how reckoned; see Gill on Genesis 46:27 . This was but a small number that went down to Egypt, when compared with that which went out of it; and that it should be compared with it is the design of its being mentioned, see Exodus 12:37 ,

for Joseph was in Egypt already ; and is the reason why he is not reckoned among the sons of Jacob, that came thither with him; though rather it may be better rendered, "with Joseph who was in Egypt" F3 ויסף "cum Josepho qui erat in Aegypto", Junius & Tremellius, Ainsworth, Noldius, No. 1197. p. 273. so the Arabic version, Kimchi, and Ben Melech. ; for he must be reckoned, and indeed his two sons also, to make up the number seventy; therefore Jonathan rightly supplies it,"with Joseph and his sons who were in Egypt,'See Gill on Genesis 46:27 .