Let your loins be girded about,.... With the girdle of truth, Eph 6:14 keeping close to the doctrines of the Gospel, abiding faithfully by them, even unto death: the allusion is either to the eating of the first passover, Ex 12:11 or rather to servants, who, in these eastern countries, wore long garments; and therefore, when in business, used to gather them up, and gird them about them, that they might perform their service with greater strength, more ease, quicker dispatch, and less hinderance: the phrase denotes readiness for business:and your lights burning.
The Vulgate Latin version adds, "in your hands"; meaning torches that were held in the hand: and may design either the Scriptures of truth, which were to be a light or lamp unto them, guiding and directing them in the ministration of the Gospel; or the lamps of profession, which should be kept clear and bright, and good works, becoming them, that should so shine before men, that all may see them, and glorify God.