וַיֹּ֣אמֶר רַב־שָׁקֵ֗ה הַאֶ֨ל אֲדֹנֶ֤יךָ וְאֵלֶ֙יךָ֙ שְׁלָחַ֣נִי אֲדֹנִ֔י לְדַבֵּ֖ר אֶת־הַדְּבָרִ֣ים הָאֵ֑לֶּה הֲלֹ֣א עַל־הָאֲנָשִׁ֗ים הַיֹּֽשְׁבִים֙ עַל־הַ֣חוֹמָ֔ה לֶאֱכֹ֣ל אֶת־חראיהם [צוֹאָתָ֗ם] וְלִשְׁתּ֛וֹת אֶת־שיניהם [מֵימֵ֥י] [רַגְלֵיהֶ֖ם] עִמָּכֶֽם׃
But Rab-shakeh said: ‘Hath my master sent me to thy master, and to thee, to speak these words? hath he not sent me to the men that sit upon the wall, to eat their own dung, and to drink their own water with you?’
Read halakhic rulings (Jewish law) on Isaiah 36:12: and classical halakhic sources.