3 The king stood by the pillar and made a covenant before the Lord, to follow the Lord, keeping his commandments, his decrees, and his statutes, with all his heart and all his soul, to perform the words of this covenant that were written in this book. All the people joined in the covenant.

Matthew Henry's Commentary on 2 Kings 23:3

Commentary on 2 Kings 23:1-3

(Read 2 Kings 23:1-3)

Josiah had received a message from God, that there was no preventing the ruin of Jerusalem, but that he should only deliver his own soul; yet he does his duty, and leaves the event to God. He engaged the people in the most solemn manner to abolish idolatry, and to serve God in righteousness and true holiness. Though most were formal or hypocritical herein, yet much outward wickedness would be prevented, and they were accountable to God for their own conduct.