Therefore, prepare your minds for action,{Literally, "gird up the loins of your mind"} be sober and set your hope fully on the grace that will be brought to you at the revelation of Jesus Christ--
What he adds, At the revelation of Jesus Christ, may be explained in two ways: that the doctrine of the Gospel reveals Christ to us; and that, as we see him as yet only through a mirror and enigmatically, a full revelation is deferred to the last day. The first meaning is approved by Erasmus, nor do I reject it. The second seems, however, to be more suitable to the passage. For the object of Peter was to call us away beyond the world; for this purpose the fittest thing was the recollection of Christ’s coming. For when we direct our eyes to this event, this world becomes crucified to us, and we to the world. Besides, according to this meaning, Peter used the expression shortly before. Nor is it a new thing for the apostles to employ the preposition ἐν in the sense of εἰς. Thus, then, I explain the passage, — “You have no need to make a long journey that you may attain the grace of God; for God anticipates you; inasmuch as he brings it to you.” But as the fruition of it will not be until Christ appears from heaven, in whom is hid the salvation of the godly, there is need, in the meantime, of hope; for the grace of Christ is now offered to us in vain, except we patiently wait until the coming of Christ. 