The fear of God was on all the kingdoms, &c. Which were near, or which heard these things. They were afraid to attack or molest the worshippers of a God who was able to help his people in so wonderful a manner. So the realm of Jehoshaphat was quiet Those that were displeased at the destroying of the images and groves, were now satisfied, and obliged to own, that since the God of Israel could deliver after this sort, he only ought to be worshipped, and in that way which himself had appointed. So that they were quiet among themselves; and they were also quiet from the fear of insults or injuries from their neighbours, God having given them rest round about.
Related Commentaries of 2 Chronicles 20:29
2 Chronicles 20:29-30
29 And the fear of God was on all the kingdoms of those countries, when they had heard that the LORD fought against the enemies of Israel.
30 So the realm of Jehoshaphat was quiet: for his God gave him rest round about.