'Repay' in the Bible

Repay to her even as she has repaid others, and pay back [to her] double [her torment] in accordance with what she has done; in the cup [of sin and suffering] which she mixed, mix a double portion [of perfect justice] for her.

“Behold, I (Jesus) am coming quickly, and My reward is with Me, to give to each one according to the merit of his deeds (earthly works, faithfulness).