Isaiah 15:7

“Therefore the abundance they have gotten, and that which they have laid up, &c.] The great substance which the Moabites had got, and hoarded up: shall they carry away to the brook of the willows; either the Moabites should carry their substance to some brook, it may be near Nimrim, where many willows grew, and cast it into the brook, or lay it by the brook side, in some private place, or under and among the willows, to preserve it from the enemy; or else the meaning is, that their enemies should take what they had with a great deal of labour got, and with a great deal of care had laid up, and carry it to the brook of the willows, some place without the city, and there divide it; or to the…”

“Therefore--because of the devastation of the land. abundance--literally, "that which is over and above" the necessaries of life. brook of . . . willows--The fugitives flee from Nimrim, where the waters have failed, to places better watered. Margin has "valley of Arabians"; that is, to the valley on the boundary between them and Arabia-PetrÃ&brvbra; now Wady-el Arabah. "Arabia" means a "desert."”

“Therefore, the abundance they have gotten - Their wealth they shall remove from a place that is utterly burned up with drought, where the waters and the grass fail, to another place where they may find water. To the brook of willows - Margin, ‘The valley of the Arabians.’ The Septuagint renders it, ‘I will lead them to the valley of the Arabians, and they shall take it.’ So Saadias. It might, perhaps, be called the valley of the Arabians, because it was the boundary line between them and Arabia on the south. Lowth renders it, ‘To Babylon.’ The probability is, that the prophet refers to some valley or brook that was called the brook of the willows, from the fact that many willows grew upon…”

“They - Their enemies. Brook - Possibly he means some such river which ran into Euphrates, and so gave them opportunity of carrying their spoils by water unto Babylon. Isaiah 15:8”

“15:7-8 The precise locations of the Ravine of Willows and of Eglaim and Beer-elim are uncertain.”

“the abundance: Isa 5:29, Isa 10:6, Isa 10:14; Nah 2:12, Nah 2:13 to the: Psa 137:1, Psa 137:2 brook of the willows: or, valley of the Arabians Isaiah 15:8”

“As Moabitis has thus become a great scene of conflagration, the Moabites cross the border and fly to Idumaea. The reason for this is given in sentences which the prophet again links on to one another with the particle ci (for). "Therefore what has been spared, what has been gained, and their provision, they carry it over the willow-brook. For the scream has gone the round in the territory of Moab; the wailing of Joab resounds to Eglayim, and his wailing to Beeer-Elim. For the waters of Dimon are full of blood: for I suspend over Dimon a new calamity, over the escaped of Moab a lion, and over the remnant of the land." Yithrâh is what is superfluous or exceeds the present need, and pekuddâh…”