ישעיהו נא:ג פירוש: רש״י ואבן עזרא

and its wasteland Heb. וְעַרְבָתָהּ. This too is an expression of a desert. Comp. (Jer. 2:6) “In a wasteland (עֲרָבָה) and a land of pits,” but the wasteland once had a settlement and it was destroyed.

The Lord shall comfort Zion, etc. Thus the connection of this verse with the preceding one is explained. He hath comforted all her waste places, by the multitude of her children, of her inhabitants.

thanksgiving A voice of thanks.