כֹּ֣ה ׀ אָמַ֣ר יְהוָ֗ה כַּאֲשֶׁ֨ר יִמָּצֵ֤א הַתִּירוֹשׁ֙ בָּֽאֶשְׁכּ֔וֹל וְאָמַר֙ אַל־תַּשְׁחִיתֵ֔הוּ כִּ֥י בְרָכָ֖ה בּ֑וֹ כֵּ֤ן אֶֽעֱשֶׂה֙ לְמַ֣עַן עֲבָדַ֔י לְבִלְתִּ֖י הַֽשְׁחִ֥ית הַכֹּֽל׃
Also spricht der Herr: Wie der Most gefunden wird in der Traube und man spricht: Verdirb sie nicht, denn ein Segen ist darin, also werde ich tun um meiner Knechte willen, dass ich nicht das Ganze verderbe.
Rashi on Isaiah
As when wine is found in the cluster Jonathan renders: As Noah was found innocent in the generation of the Flood.
Ibn Ezra on Isaiah
Thus saith the Lord, As the new wine, etc. Although they have sinned, it will, nevertheless, be in those days as when the new wine is found in the cluster and one saith to the other do not destroy it, for a blessing is in it. I shall do the same for the sake of my servants, the righteous men of Israel, during their exile; namely, I shall not utterly destroy them.