Matthew Poole and continuators on Isaiah 15:7

7 Therefore the abundance they have gotten, and that which they have laid up, shall they carry to the brook of the willows .

To wit, their Enemies; which is plainly implied.

Unto some Brook or River having great numbers of Willows growing by it, by which they might convey them to some eminent and strong City built upon the same River. Possibly he means some such River which [illegible: 1+ letters]an into Euphrates, and so gave them opportunity of carrying their Spoils by Water unto Babylon. Though the Words may be rendred, into the vally of the Arabians; whither the Spoils might be first carried, in order to their Transportation into Assyria or Chaldaea: for part of Arabia lay between Moab and those Countries. But the former Translation seems better, because these very Words are so rendred, Levit. 23. 40.

Marginal references: Or, valley of the Arabians.