Isaiah 15:7-9. “Therefore the abundance they have gotten, and that which they have laid up, shall they carry away to the brook of the willows. For the cry is gone round about the borders of Moab: the howling thereof unto Eglaim, and the howling thereof unto Beer-elim. For the waters of Dimon shall be full of blood: for I will bring more upon Dimon, lions upon him that escapeth of Moab, and upon the remnant of the land.”
The people of Moab are going to try to rescue whatever they can, in terms of crops for food, and probably their household goods and money. The Brook of the Willows seems to have been a boundary between Moab and the Jordan River. They would be looking for a place of escape and shelter, hoping to save whatever they could from the destruction of their enemies.
Verse 8 mentions other boundaries of Moab, where the news of the fall of their land will spread with great lamentation and crying. The waters of Dimon, another boundary, would be red with the blood of the slain. And to make matters worse, there would be lions that would hunt escapees from Moab.
There would be very little success in their efforts to escape the armies of Assyria.