2 Chronicles 32:26 - Joseph Benson’s Commentary on the Old and New Testaments

Hezekiah humbled himself for the pride of his heart For the sins of the heart, though they should never show themselves in any external way, either by word or deed, must be acknowledged to God and repented of, if we would find mercy; and self-humiliation is a necessary branch of repentance. Both he and the inhabitants of Jerusalem Who humbled themselves with Hezekiah, either because they were conscious they had been guilty of the same sin, or, at least, feared they might share in the punishment. So that the wrath of the Lord came not upon them in the days of Hezekiah In his days there were peace and truth; so much doth repentance avail to put by, or at least to put off, the tokens of God's anger.