Verse 17. A covenant - A sacred covenant whereby he solemnly engaged both the king, and people, that they should be the Lord's people; that they should renounce, and root out all idolatry, and set up and maintain God's true worship. Between the king - This was a civil covenant, whereby the king engaged himself to rule them justly, and in the fear of God; and the people obliged themselves to defend and obey him.