If any one from poverty was unable to redeem his inheritance, it was the duty of the kinsman to redeem it (Lev. 25:25, 28; Ruth 3:9, 12). He was also required to redeem his relation who had sold himself into slavery (Lev. 25:48,49).
God is the Goel of his people because he redeems them (Ex. 6:6; Isa. 43:1, 41:14, 44:6, 22, 48:20; Ps. 103:4; Job 19:25, etc.).
The goel also was the avenger (q.v.) of blood (Num. 35:21) in the case of the murder of the next of kin.