הִנֵּה֙ בִּֽהְיוֹת֣וֹ תָמִ֔ים לֹ֥א יֵֽעָשֶׂ֖ה לִמְלָאכָ֑ה אַ֣ף כִּי־אֵ֤שׁ אֲכָלַ֙תְהוּ֙ וַיֵּחָ֔ר וְנַעֲשָׂ֥ה ע֖וֹד לִמְלָאכָֽה׃ (ס)
Quoi! Quand il était intact, on ne l’employait à rien; maintenant que le feu l’a consumé et noirci, il serait encore de quelque usage?
Rashi
How much more Heb. אֲף כִּי, an expression of an a fortiori and ‘how much more so.’ It is the same throughout Scripture, like (I Sam. 23:3): “Behold we are afraid here in Judah; how much more so (אֲף כִּי) if we go to Keilah...?” Likewise, in this chapter (15:5): “Behold when it was whole, it could not be used for work; how much less (אֲף כִּי) when fire has consumed it, etc.?”