וּמִבְצַ֞ר מִשְׂגַּ֣ב חוֹמֹתֶ֗יךָ הֵשַׁ֥ח הִשְׁפִּ֛יל הִגִּ֥יעַ לָאָ֖רֶץ עַד־עָפָֽר׃ (ס)
And the high fortress of thy walls will He bring down, lay low, And bring to the ground, even to the dust.
Read kabbalistic (mystical) interpretation of Isaiah 25:12: and classical mystical sources.