John Gill Bible Commentary

And the sons of Israel came to buy corn among those that came,.... Either among the Egyptians that came to buy, or among those who came from different countries, or rather particularly among the Canaanites, as the Targum of Jonathan; with these they might join upon the road, and go together in a body where the market for corn was: for the famine was in the land of Canaan: which obliged the inhabitants of it as well as Jacob's family to seek for corn elsewhere, and confirms the sense of the preceding clause: this, though a very fruitful land, yet when God withheld a blessing from it, it became barren, as it had been before, Gen 12:10, and was to try the faith of those good men to whom God had given it, and to wean their hearts from being set upon it, and to put them upon seeking a better country, as they did.