הֹוָ֤ה עַל־הֹוָה֙ תָּב֔וֹא וּשְׁמֻעָ֥ה אֶל־שְׁמוּעָ֖ה תִּֽהְיֶ֑ה וּבִקְשׁ֤וּ חָזוֹן֙ מִנָּבִ֔יא וְתוֹרָה֙ תֹּאבַ֣ד מִכֹּהֵ֔ן וְעֵצָ֖ה מִזְּקֵנִֽים׃
환난에 환난이 더하고 소문에 소문이 더할 때에 그들이 선지자에게 묵시를 구하나 헛될 것이며 제사장에게는 율법이 없어질 것이요 장로에게는 모략이 없어질 것이며
Rashi
Happening upon happening Heb. הוָֹה עַל-הוָֹה, happening upon happening, being after being. Menachem (p. 70) associated it to a term for a breach.
Rashi
and instruction will be lost from a priest who usually gave instruction, as is said (Mal. 2:7): “and teaching should be sought from his mouth.”