2 Chronicles 17:6

His heart was lifted up. This expression is usually employed in a bad sense (see Deut. 8:14; 2 Chron. 26:16; Eze. 28:2, 17), but here it has an entirely different meaning. The heart of Jehoshaphat was lifted up in God and in His ways. The king found both satisfaction and joy in his experience with God. Emboldened by a sense of divine favor resting upon him, he took heart to venture upon further reforms and to encourage his people in the ways of the Lord. His great aim in life was to exalt, not himself, but God.

Took away the high places. He continued, the work of reform begun by his father (ch. 14:3, 5). Not only did Jehoshaphat not seek after the Baalim, but he also did away with their centers of worship. There were, however, other high places that were local centers of the worship of Jehovah (see 1 Kings 3:2, 4; 1 Chron. 16:39; 2 Chron. 1:3), and these presumably he permitted to remain (1 Kings 22:43).