John Gill Commentary 2 Chronicles 32:26

"Notwithstanding Hezekiah humbled himself for the pride of his heart, both he and the inhabitants of Jerusalem, so that the wrath of Jehovah came not upon them in the days of Hezekiah." — 2 Chronicles 32:26 (ASV)

Notwithstanding, Hezekiah humbled himself for the pride of his
heart, both he and the inhabitants of Jerusalem
In what manner is not said; perhaps by putting on sackcloth, and by fasting and prayer, and making confession of sin, and declaring repentance for it:

so that the wrath of the Lord came not upon them in the days of
Hezekiah ;
but in the days of his son's sons, (Isaiah 39:7Isaiah 39:8) .