אֵ֣ל נַ֭עֲרָץ בְּסוֹד־קְדֹשִׁ֣ים רַבָּ֑ה וְ֝נוֹרָ֗א עַל־כָּל־סְבִיבָֽיו׃
A God dreaded in the great council of the holy ones, And feared of all them that are about Him?
Read kabbalistic (mystical) interpretation of Psalms 89:8: and classical mystical sources.