וַיֹּ֨אמֶר אֲלֵיהֶ֜ם רַב־שָׁקֵ֗ה הַעַ֨ל אֲדֹנֶ֤יךָ וְאֵלֶ֙יךָ֙ שְׁלָחַ֣נִי אֲדֹנִ֔י לְדַבֵּ֖ר אֶת־הַדְּבָרִ֣ים הָאֵ֑לֶּה הֲלֹ֣א עַל־הָאֲנָשִׁ֗ים הַיֹּֽשְׁבִים֙ עַל־הַ֣חֹמָ֔ה לֶאֱכֹ֣ל אֶת חריהם [צוֹאָתָ֗ם] וְלִשְׁתּ֛וֹת אֶת־שיניהם [מימֵ֥י] [רַגְלֵיהֶ֖ם] עִמָּכֶֽם׃
But Rab-shakeh said unto them: ‘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 on the wall, to eat their own dung, and to drink their own water with you?’
Read halakhic rulings (Jewish law) on II Kings 18:27: and classical halakhic sources.