וְיֵה֗וּא לֹ֥א שָׁמַ֛ר לָלֶ֛כֶת בְּתֽוֹרַת־יְהוָ֥ה אֱלֹהֵֽי־יִשְׂרָאֵ֖ל בְּכָל־לְבָב֑וֹ לֹ֣א סָ֗ר מֵעַל֙ חַטֹּ֣אות יָֽרָבְעָ֔ם אֲשֶׁ֥ר הֶחֱטִ֖יא אֶת־יִשְׂרָאֵֽל׃
But Jehu took no heed to walk in the law of the LORD, the God of Israel, with all his heart; he departed not from the sins of Jeroboam, wherewith he made Israel to sin.
Read midrashic interpretation of II Kings 10:31: and classical rabbinic exegesis.