Other good kings, as Solomon, Jehoshaphat, Joash, and Amaziah, had fallen away in their later years. Hezekiah remained firm to the last. The phrase “cleaving to God” is frequent in Deuteronomy, but rare elsewhere.
Related Commentaries of 2 Kings 18:6
2 Kings 18:6
6 For he clave to the LORD, and departed not from following him, but kept his commandments, which the LORD commanded Moses.