מִֽי־תִכֵּ֥ן אֶת־ר֖וּחַ יְהוָ֑ה וְאִ֥ישׁ עֲצָת֖וֹ יוֹדִיעֶֽנּוּ׃
Who hath meted out the spirit of the LORD? Or who was His counsellor that he might instruct Him?
Read kabbalistic (mystical) interpretation of Isaiah 40:13: and classical mystical sources.