Kings I 24:18

18 And Saul said to David, Thou more righteous that I, for thou hast recompensed me good, but I have recompensed thee evil.

Kings I 24:18 In-Context

16 The Lord be judge and umpire between me and thee, the Lord look upon and judge my cause, and rescue me out of thy hand.
17 And it came to pass when David had finished speaking these words to Saul, that Saul said, this thy voice, Son David? And Saul lifted up his voice, and wept.
18 And Saul said to David, Thou more righteous that I, for thou hast recompensed me good, but I have recompensed thee evil.
19 And thou hast told me to-day what good thou hast done me, how the Lord shut me up into thy hands to-day, and thou didst not slay me.
20 And if any one should find his enemy in distress, and should send him forth in a good way, then the Lord will reward him good, as thou has done this day.

The Brenton translation of the Septuagint is in the public domain.