2 Chronicles 14:3
For he took away the altars of the strange gods, and the high places, and brake down the images, and cut down the groves: For he took away the altars of the strange gods, and the high places, and brake down the images, and cut down the groves:
Asa took away the altars of foreign gods and the high places, broke down the images, and cut down the groves. That removal cleared idolatrous worship from Judah. The clearing extended throughout Judah to the high places and the sun images.
Asa's action in removing them was good and right conduct. It was a determined religious reform. Along with the removal, Asa directed Judah to seek the Lord and to obey the law and the commandments.
The reform was accompanied and followed by peace in the kingdom. The reform is an example of the kind of work needed in the present time.