John Gill Commentary 2 Chronicles 29:8

"Wherefore the wrath of Jehovah was upon Judah and Jerusalem, and he hath delivered them to be tossed to and fro, to be an astonishment, and a hissing, as ye see with your eyes." — 2 Chronicles 29:8 (ASV)

Wherefore the wrath of the Lord was upon. Judah and Jerusalem ,
&c.] As appeared, by suffering the Syrians, and Israelites, and Edomites, and Philistines, to come upon them, and distress them, as the history of the preceding chapter shows:

and he has delivered them to trouble, to astonishment, and to hissing,
as you see with your eyes ;
such desolation and destruction were made among them, as not only threw them into a stupor, that they knew not what to do, but were amazing to all their neighbours, and caused them to hiss at them, which they could not but be sensible of.