פירוש על ישעיהו 3:3

counsellor One who knows how to intercolate the years and fix the months.

חכם חרשים The cunning artificer.

skillful craftsman [explained by the Talmud as “wise of the deaf,” meaning that] when he commences [to speak of] words of Torah, all become as deaf [i.e., unable to refute his statement].