With your loins girded, etc. Completely prepared, i.e; to start on your journey—with the loose wrapper (beged), ordinarily worn, collected together and fastened by a girdle about the waist; with sandals on the feet, which were not commonly worn in houses; and with walking-sticks in the hand.
There were some Jews who regarded these directions as of perpetual obligation; but the general view was that they applied to the first occasion only, when alone they would have answered any useful purpose.
You shall eat it in haste. As not knowing at what moment you may be summoned to start on your journey, and as having to see to the burning of the bones after the flesh was eaten, which would take some time.
It is the Lord's Passover. Very emphatic words! "This is no common meal," they seem to say, "it is not even an ordinary sacrificial repast. The lamb is Jehovah's. It is his pass-sign—the mark of his protection, the precious means of your preservation from death.
As such view it; and though ye eat it in haste, eat it with reverence."