Or HaChaim on Genesis 47:27/אור החיים על בראשית מ״ז:כ״ז

1 וישב ישראל בארץ מצרים, Israel dwelled in the land of Egypt, etc. Why did the Torah add that the land of Goshen is in the land of Egypt? Do we not know this already? Besides, what is the connection between the Jewish people multiplying and their dwelling in the land of Egypt?

2The Torah evidently wishes to remind us of the fulfilment of G'd's prophecy to Jacob in 46,3 that while in Egypt he would develop into a great nation, that the reason he and his family had to descend to Egypt was to liberate the stray holy souls that were entrapped amongst the Egyptians and their pagan practices. This is why the Torah emphasises that Israel dwelled in the land of Egypt, a morally thoroughly depraved society. The Torah adds that Israel lived in the land of Goshen to hint that the origin of that word is הגשה, approach, i.e. that all those scattered souls we have previously described were attracted to and collected in Goshen because of the presence there of a branch of sanctity as represented by Jacob/lsrael. The entire paragraph refers to the fledgling nation Israel in the singular to emphasise the unity of purpose that characterised that society at that time. When the Torah adds ויאחזו בה, "they were possessed by it," this refers to their lofty ideal as a developing holy nation. The reason they were extraordinarily fruitful and multiplied was the fact that they were possessed by lofty ideals not because they happened to find themselves on Egyptian soil. The author suggests reading up the comments of the Maha"rik on Exodus 1,6: "Joseph, all his brothers and that entire generation died."