Depart, depart, go out from there! Touch no unclean thing; come out from it, purify yourselves, you who carry the vessels of the LORD. For you will not leave in a hurry nor flee in haste, for the LORD goes before you, and the God of Israel is your rear guard.
This is how you are to eat it: You must be fully dressed for travel, with your sandals on your feet and your staff in your hand. You are to eat in haste; it is the LORD's Passover.
Significance
The departure/haste-inversion seam of the new-exodus oracle. Isaiah 52:11 commands "Depart, depart, go out from there! Touch no unclean thing" — echoing the original departure from Egypt — and 52:12 deliberately reverses its manner: Israel ate the Passover "in haste" (בְּחִפָּזוֹן, bechippazon, Exodus 12:11), but "you will not leave in a hurry nor flee in haste, for the LORD goes before you, and the God of Israel is your rear guard." The rare חִפָּזוֹן (three occurrences in the canon) is the citation-grade verbal hinge: the greater deliverance does not repeat the first exodus but surpasses it — a dignified procession under God's own escort rather than a panicked flight.