וַֽיהוָ֗ה נָתַ֤ן קוֹלוֹ֙ לִפְנֵ֣י חֵיל֔וֹ כִּ֣י רַ֤ב מְאֹד֙ מַחֲנֵ֔הוּ כִּ֥י עָצ֖וּם עֹשֵׂ֣ה דְבָר֑וֹ כִּֽי־גָד֧וֹל יוֹם־יְהוָ֛ה וְנוֹרָ֥א מְאֹ֖ד וּמִ֥י יְכִילֶֽנּוּ׃
Rashi on Joel
And the Lord gave forth (upon them) His voice—by the statement of His prophets prior to His sending this host of His.
Rashi on Joel
for His camp is great—I.e, the camp He will send against you if you do not improve.