ה֗וֹי הֲמוֹן֙ עַמִּ֣ים רַבִּ֔ים כַּהֲמ֥וֹת יַמִּ֖ים יֶהֱמָי֑וּן וּשְׁא֣וֹן לְאֻמִּ֔ים כִּשְׁא֛וֹן מַ֥יִם כַּבִּירִ֖ים יִשָּׁאֽוּן׃
Ah, the uproar of many peoples, That roar like the roaring of the seas; And the rushing of nations, that rush like the rushing of mighty waters!
Read halakhic rulings (Jewish law) on Isaiah 17:12: and classical halakhic sources.