יְהוָ֥ה חָנֵּ֖נוּ לְךָ֣ קִוִּ֑ינוּ הֱיֵ֤ה זְרֹעָם֙ לַבְּקָרִ֔ים אַף־יְשׁוּעָתֵ֖נוּ בְּעֵ֥ת צָרָֽה׃
O LORD, be gracious unto us; We have waited for Thee; be Thou their arm every morning, our salvation also in the time of trouble.
Read kabbalistic (mystical) interpretation of Isaiah 33:2: and classical mystical sources.