פִּֽי־כְ֭סִיל מְחִתָּה־ל֑וֹ וּ֝שְׂפָתָ֗יו מוֹקֵ֥שׁ נַפְשֽׁוֹ׃
미련한 자의 입은 그의 멸망이 되고 그 입술은 그의 영혼의 그물이 되느니라
Akeidat Yitzchak
Rabbi Yannai in the opening Midrash quoted, simply wanted to tell us that the lesson taught by the spice merchant had already been taught by Solomon in Proverbs.