After constraining oppression, God now declares the right of redemption. Because they are sojourners in the land, they cannot buy or sell the land permanently. When they sell the land, it can also be redeem by someone near of kin to them. This is the same word that is used with avenger of blood or the kinsman redeemer. It is a picture of Christ. Christ had to become incarnate to become a kinsman in order to redeem the world itself that was sold into sin through the work of Adam. God creates a different picture related to the land compared to cities in the land. In cities, houses can be bought and sold. It can be redeemed within a year, but after that, it is perpetually the purchasers and his heirs unless you are a Levite. The Levite can purchase their houses back whenever they want to. While houses in other walled cities remain their purchasers even through the Jubilee year, that is not the case for Levites. They receive their houses back in the Jubilee. In the laws about the houses, the picture is of heavenly Jerusalem, where, as a picture of the elect, the Levites always have a place and they will receive their place in the new heavens and the new earth.