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 halakhic rulings (Jewish law) on Isaiah 25:12 from the Mishneh Torah and classical halakhic sources, free online.