Matthew Poole and continuators on 1 Kings 22:43

43 And he walked in all the ways of Asa his father , he turned not aside from it, doing that which was right in the eyes of the LORD: nevertheless, the high places were not taken away ; for the people offered and burnt incense yet in the high places.

He took the same care for the Government of his Kingdom; and especially, for the Reformation of Religion, that Asa did: of whom, see Chap. 15. 11.

Object. It is said, he did take them away, 2 Chron. 17. 6. Answ. He took away those which were Erected to Idols; of which, he seems to speak there, because the high places are there joyned with groves, which were generally Erected to Idols, and not to the True God, as will appear to any one that shall compare all the Scriptures where groves are mentioned; but he could not take away those which were Erected to the True God; of which, this place manifestly speaks; as also that Parallel place, 1 King. 15. 14. where see the notes. Or, he took them away, but not fully; or not in the very beginning of his Reign.