redeem

Save someone from sin, error, or evil.

"Christ died to redeem humanity."

Compensate for the faults or bad aspects of something or someone.

"His good performance redeemed his earlier mistakes."

Gain or regain possession of something in exchange for payment.

"He redeemed his pawned watch."

Exchange a coupon, voucher, or points for goods, services, or money.

"You can redeem this voucher for a free coffee."