Lift up thy feet unto the perpetual desolations,.... That is, arise, hasten, move swiftly, and in the greatness of strength, and come and see the desolations made by the enemy, which look as if they would remain for ever; meaning either the desolations made in the city and temple of Jerusalem, either by Nebuchadnezzar, or by Titus; or the havocs and devastations made in the church of God by the tyranny and persecutions of antichrist; which have continued so long, that an end of them has been almost despaired of.
So Jacob is said to "lift up his feet"; which we render went on his way, Ge 29:1. Some take these words in a different sense, as a prayer for the destruction of the church's enemies; so the Targum,"lift up thy feet or goings, to make desolate the nations for ever;''and Kimchi makes but one sentence of this and the following clause, and reads it thus,"lift up thy feet, to make desolate for ever every enemy that does wickedly in the sanctuary:''but the accent "athnach", which divides propositions, and is upon the word xun, forbids such a reading.