צִוָּ֥ה אֱלֹהֶ֗יךָ עֻ֫זֶּ֥ךָ עוּזָּ֥ה אֱלֹהִ֑ים ז֝֗וּ פָּעַ֥לְתָּ לָּֽנוּ׃
Thy God hath commanded thy strength; Be strong, O God, Thou that hast wrought for us
Read kabbalistic (mystical) interpretation of Psalms 68:29: and classical mystical sources.