כִּ֣י בֹ֔חַן וּמָ֕ה אִם־גַּם־שֵׁ֥בֶט מֹאֶ֖סֶת לֹ֣א יִֽהְיֶ֑ה נְאֻ֖ם אֲדֹנָ֥י יְהוִֽה׃ (פ)
For there is a trial; and what if it contemn even the rod? It shall be no more, saith the Lord GOD.
Read midrashic interpretation of Ezekiel 21:18: and classical rabbinic exegesis.