Matthew Poole and continuators on 2 Chronicles 20:2

2 Then there came some that told Jehoshaphat, saying, There cometh a great multitude against the[illegible: 1+ letters] from beyond the sea on this side Syria , and behold, they be in Haz[illegible: 1+ letters]zon-tamar, which is Engedi.

To wit, the Dead Sea, beyond which Mount Seir lay.

Or, and from Syria, largely so called, and so it includes the Moabites and Ammonites. And it may be thus expressed to intimate that they came by the Instigation of the Syrians, who thought by this means to revenge themselves of Jehoshaphat for joyning with Ahab against them.