The high places, however, were not taken away; the people had not yet set their hearts upon the God of their fathers.
We are now drawing towards the close of the history of Jehoshaphat's reign, for a further account of which those who lived when this book was published were referred to an authentic history of it, written by Jehu the prophet (Ch2 19:2), which was then extant, Ch2 20:34.
Commenting on 2 Chronicles 20:31-37
Now the rest of the acts of Jehoshaphat, first and last,.... Those that were done at the beginning, and those that were done at the latter end of his reign: behold, they are written in the book of Jehu, the son of Hanani, who is mentioned in the book of the kings of Israel; see Kg1 16:1, the same that reproved Jehoshaphat, Ch2 19:2.
the high places were not taken away--Those on which idolatry was practised were entirely destroyed (Ch2 17:6); but those where the people, notwithstanding the erection of the temple, continued to worship the true God, prudence required to be slowly and gradually abolished, in deference to popular prejudice.