יִגְמְלֵ֣נִי יְהוָ֣ה כְּצִדְקִ֑י כְּבֹ֥ר יָ֝דַ֗י יָשִׁ֥יב לִֽי׃
The LORD rewarded me according to my righteousness; according to the cleanness of my hands hath He recompensed me. .
Read kabbalistic (mystical) interpretation of Psalms 18:21: and classical mystical sources.