Verses with the word repay in the Old Testament (4 verses):

Deuteronomy 7:10
And repayeth them that hate him to their face, to destroy them: he will not be slack to him that hateth him, he will repay him to his face.

Job 21:31
Who shall declare his way to his face? and who shall repay him what he hath done?

Job 41:11
Who hath prevented me, that I should repay him? whatsoever is under the whole heaven is mine.

Isaiah 59:18
According to their deeds, accordingly he will repay, fury to his adversaries, recompence to his enemies; to the islands he will repay recompence.