Our Lord having taught His disciples moderation, taking from them all care and conceit of this life, now leads them on to serve and obey, saying, Let your loins be girded, that is, always ready to do the work of your Lord, and your lamps burning, that is, do not lead a life in darkness, but have with you the light of reason, shewing you what to do and what to avoid. For this world is the night, but they have their loins girded, who follow a practical or active life. For such is the condition of servants who must have with them also lamps burning; that is, the gift of discernment, that the active man may be able to distinguish not only what he ought to do, but in what way; otherwise men rush down the precipice of pride. But we must observe, that He first orders our loins to be girded, secondly, our lamps to be burning. For first indeed comes action, then reflection, which is an enlightening of the mind. Let us then strive to exercise the virtues, that we may have two lamps burning, that is, the conception of the mind ever shining forth in the soul, by which we are ourselves enlightened, and learning, whereby we enlighten others.
Reproduced in full. Translation: Oxford 1841 (Newman), public domain (Public domain).
