וַיְדַבֵּ֣ר אֲלֵיהֶ֗ם כַּעֲצַ֤ת הַיְלָדִים֙ לֵאמֹ֔ר אָבִי֙ הִכְבִּ֣יד אֶֽת־עֻלְּכֶ֔ם וַאֲנִ֖י אֹסִ֣יף עַֽל־עֻלְּכֶ֑ם אָבִ֗י יִסַּ֤ר אֶתְכֶם֙ בַּשּׁוֹטִ֔ים וַאֲנִ֕י אֲיַסֵּ֥ר אֶתְכֶ֖ם בָּעַקְרַבִּֽים׃
and spoke to them after the counsel of the young men, saying: ‘My father made your yoke heavy, but I will add to your yoke; my father chastised you with whips, but I will chastise you with scorpions.’
Rashi
And Aram of Damascus came - Heb. דַרְמֶשֶׂק, and in II Samuel (8:6), it is written: דַמֶּשֶׂק. It is customary for Scripture to speak in this manner, like from שַׁרְבִיט :שֵׁבֶט, for (cf. I Kings 12:14): “I shall flog you with whips בַּשּׁוֹטִים (Sic),” is translated שַׁרְבִיטִים. (Rabbi Isaac said this also.)
Rashi
and one I called Destoyers Rehoboam told [his kingdom] that he would flog them with scorpions (I Kings 12:11). [Zechariah] calls their rulers staffs because it is customary to lead flocks with staffs.