Lift up thy feet. — Better, Lift thy steps. A poetical expression. God is invoked to hasten to view the desolation of the Temple. A somewhat similar expression will be found in Genesis 29:1 (margin).
Perpetual desolations. — The word rendered “desolations” occurs also in Psalms 73:18, where it is rendered “destruction.” Here, perhaps, we should render ruins which must be ever ruins, or complete ruins, or possibly, taking the first meaning of netsach, ruins of splendour. Isaiah 11:4 does not offer a parallel, since the Hebrew is different, and plainly refers to the long time the places have been in ruins.
Even all... — Better, the enemy hath devastated all in the holy place. 1Ma. 1:38-40; 1Ma. 3:45 (“Now Jerusalem lay void as a wilderness”) give the best explanation of the verse, descriptive, as it is, of the condition of the whole of Zion.