Only the land of the priests he did not buy, for the priests had a fixed allowance from Pharaoh and lived on the allowance that Pharaoh gave them; therefore they did not sell their land.
22. Only the land of the priests. The priests were exempted from the common law, because the king granted them a maintenance. It is, indeed, doubtful, whether this was a supply for their present necessity, or whether he was accustomed to nourish them at his own expense.
Care being taken of Jacob and his family, the preservation of which was especially designed by Providence in Joseph's advancement, an account is now given of the saving of the kingdom of Egypt too from ruin; for God is King of nations as well as King of saints, and provideth food for all flesh.
Commenting on Genesis 47:13-26
Then Joseph said unto the people,.... After he had bought their land, and before the removal of them to distant parts: behold, I have bought you this day, and your land, for Pharaoh: which he observes to them, that they might take notice of it, and confirm it, or object if they had anything to say to the contrary: lo, here is seed for you...