John Wesley on 2 Chronicles 19:4

Through - Through the whole kingdom, whereof these were the two bounds. And brought - Such of them as had revolted from God to idols, he reclaimed by his counsel and example, and by the instructions of the Levites and priests, whom he carried with him. Many, probably, had revolted to idolatry, when they saw their king so intimate with idolaters. Therefore he thought himself doubly obliged to do all he could to reduce them. If we truly repent of sin, we shall do our utmost to repair the damage we have done to religion, or the souls of others.