II Chronicles 20:33 Midrash

אַ֥ךְ הַבָּמ֖וֹת לֹא־סָ֑רוּ וְע֤וֹד הָעָם֙ לֹא־הֵכִ֣ינוּ לְבָבָ֔ם לֵאלֹהֵ֖י אֲבֹתֵיהֶֽם׃

Howbeit the high places were not taken away; neither as yet had the people set their hearts unto the God of their fathers.

Read midrashic interpretation of II Chronicles 20:33: and classical rabbinic exegesis.