Cross reference
Leviticus 25:31
31 But the houses of the villages which have no wall round about them shall be reckoned with the fields of the country: they may be redeemed, and they shall go out in the jubilee.
Psalms 49:7-8
7 None `of them' can by any means redeem his brother, Nor give to God a ransom for him;
8 (For the redemption of their life is costly, And it faileth for ever;)