גַּם־ה֥וּא עָשָֽׂה־בָמ֖וֹת בְּהָרֵ֣י יְהוּדָ֑ה וַיֶּ֙זֶן֙ אֶת־יֹשְׁבֵ֣י יְרוּשָׁלִַ֔ם וַיַּדַּ֖ח אֶת־יְהוּדָֽה׃ (פ)
Moreover he made high places in the mountains of Judah, and made the inhabitants of Jerusalem to go astray, and drew Judah away.
Read midrashic interpretation of II Chronicles 21:11: and classical rabbinic exegesis.