John Wesley on 2 Chronicles 17:6

Lifted up - Above all discouragements, and fears. He was valiant and resolute for God and his ways. Groves - Those wherein idols were worshipped, and though Asa had done this before, yet either he did not do it thoroughly; or the Jews (who were many of them mad upon their idols) had secretly made new ones, in the latter part of his reign, when he grew more infirm in body, and more remiss in God's cause.