וּלְךָֽ־אֲדֹנָ֥י חָ֑סֶד כִּֽי־אַתָּ֨ה תְשַׁלֵּ֖ם לְאִ֣ישׁ כְּֽמַעֲשֵֽׂהוּ׃
Also unto Thee, O Lord, belongeth mercy; For Thou renderest to every man according to his work.
Read kabbalistic (mystical) interpretation of Psalms 62:13: and classical mystical sources.