Redeemer

In the Old Testament, a 'go'el' (kinsman-redeemer) was a close relative who had the right and responsibility to buy back land or people who had been sold into slavery. Boaz played this role for Ruth and Naomi. Job cried out 'I know that my Redeemer lives.' The New Testament applies this to Jesus — who paid the price to buy humanity back from sin and death. 'Redemption' is the act of being bought back.