וְלֹ֖א שָׁמֵ֑עוּ וַיַּתְעֵ֤ם מְנַשֶּׁה֙ לַעֲשׂ֣וֹת אֶת־הָרָ֔ע מִן־הַ֨גּוֹיִ֔ם אֲשֶׁר֙ הִשְׁמִ֣יד יְהוָ֔ה מִפְּנֵ֖י בְּנֵ֥י יִשְׂרָאֵֽל׃
But they hearkened not; and Manasseh seduced them to do that which is evil more than did the nations, whom the LORD destroyed before the children of Israel.
Read midrashic interpretation of II Kings 21:9: and classical rabbinic exegesis.