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Goel: In Hebrew the participle of the verb gaal, "to redeem." It is
rendered in the Authorized Version "kinsman,"
(Numbers 5:8; Ruth 3:12; 4:1,6,8)
"redeemer,"
(Job 19:25) "avenger,"
(Numbers 35:12; Deuteronomy 19:6) etc. The Jewish
law gave the right of redeeming and repurchasing, as well as of
avenging blood, to the next relative, who was accordingly called by
this name.