וְגַם־אֲנִי֩ נָתַ֨תִּי לָכֶ֜ם נִקְי֤וֹן שִׁנַּ֙יִם֙ בְּכָל־עָ֣רֵיכֶ֔ם וְחֹ֣סֶר לֶ֔חֶם בְּכֹ֖ל מְקוֹמֹֽתֵיכֶ֑ם וְלֹֽא־שַׁבְתֶּ֥ם עָדַ֖י נְאֻם־יְהוָֽה׃
또 내가 너희 모든 성읍에서 너희 이를 한가하게 하며 너희 각처에서 양식이 떨어지게 하였으나 너희가 내게로 돌아오지 아니하였느니라 이는 여호와의 말씀이니라
Rashi
Cleanness of teeth Heb. נִקְיוֹן שִׁנַּיִם. Setting your teeth on edge. [I.e, they would have nothing to eat, and their teeth would be set on edge.] Another explanation: cleanness of teeth. This denotes the lack of meat, which goes between the teeth, as it is stated: (Num. 11:33) “The meat was still between their teeth.”