2 Chronicles 20:33

For... hearts. — And the people had not yet directed their heart. This language is the chronicler’s own (see 2 Chronicles 12:14; 2 Chronicles 19:3), and is substituted for the statement, “The people were still wont to sacrifice and burn incense on the high places” (Kings). They had not yet accepted the principle of the one Temple.

(33) Howbeit the high places were not taken away. — This is no contradiction of 2 Chronicles 17:6, “And further (or again), he took away the high places.” There the holy places of heathenism, here those of the illegal worship of Jehovah, appear to be meant.