וְקִרְע֤וּ לְבַבְכֶם֙ וְאַל־בִּגְדֵיכֶ֔ם וְשׁ֖וּבוּ אֶל־יְהוָ֣ה אֱלֹֽהֵיכֶ֑ם כִּֽי־חַנּ֤וּן וְרַחוּם֙ ה֔וּא אֶ֤רֶךְ אַפַּ֙יִם֙ וְרַב־חֶ֔סֶד וְנִחָ֖ם עַל־הָרָעָֽה׃
And rend your heart, and not your garments, And turn unto the LORD your God; For He is gracious and compassionate, long-suffering, and abundant in mercy, And repenteth Him of the evil.
Rashi on Joel
and not your garments—for I do not pay heed to the rending of your garments. Another explanation: Rend your hearts and you will not need to rend your garments because of mourning.
Rashi on Joel
and He repents of the evil—I.e., He turns to another thought.