מִֽי־יַגִּ֣יד עַל־פָּנָ֣יו דַּרְכּ֑וֹ וְהֽוּא־עָ֝שָׂ֗ה מִ֣י יְשַׁלֶּם־לֽוֹ׃
But who shall declare his way to his face? And who shall repay him what he hath done?
Read kabbalistic (mystical) interpretation of Job 21:31: and classical mystical sources.