28 But if he is not able to get it back for himself, then it will be kept by him who gave a price for it, till the year of Jubilee; and in that year it will go back to its first owner and he will have his property again.

Matthew Henry's Commentary on Leviticus 25:28

Commentary on Leviticus 25:23-34

(Read Leviticus 25:23-34)

If the land were not redeemed before the year of jubilee, it then returned to him that sold or mortgaged it. This was a figure of the free grace of God in Christ; by which, and not by any price or merit of our own, we are restored to the favour of God. Houses in walled cities were more the fruits of their own industry than land in the country, which was the direct gift of God's bounty; therefore if a man sold a house in a city, he might redeem it only within a year after the sale. This encouraged strangers and proselytes to come and settle among them.