What does Mark 13:33-37 mean?

BURKITT: | Mr 13:1-2 | Mr 13:3-4 | Mr 13:5-10 | Mr 13:11-13 | Mr 13:14 | Mr 13:15-18 | Mr 13:19-20 | Mr 13:21-23 | Mr 13v24-27 | Mr 13:28-32 | Mr 13:33-37 | KJV

Reference

33 Take ye heed, watch and pray: for ye know not when the time is. 34 For the Son of man is as a man taking a far journey, who left his house, and gave authority to his servants, and to every man his work, and commanded the porter to watch. 35 Watch ye therefore: for ye know not when the master of the house cometh, at even, or at midnight, or at the cockcrowing, or in the morning: 36 Lest coming suddenly he find you sleeping. 37 And what I say unto you I say unto all, Watch. (Mark 13:33-37 KJV)

William Burkitt’s Commentary

Our blessed Saviour takes occasion, from the foregoing doctrine of the certainty and suddenness of his coming to judgment, to enforce the duty of diligent and industrious watchfulness upon his disciples and followers; that is, to be upon their guard against all sin, and to be in an actual readiness for his appearance and approach.

Learn hence, That it is the indispensible duty, and ought to be the indefatigable endeavour, of every Christian, to stand upon his guard in a prepared readiness for Christ’s appearance, both for his coming to them, and for their going to him. There is a twofold readiness for Christ’s coming; namely, habitual and actual; an habitual readiness is a readiness of the person: when we are furnished with all the graces and virtues of a good life, when our lamps are burning, and our loins girded, our souls furnished with all the graces of God’s Holy Spirit, our lives fruitful in good works: Blessed is that servant, who, when his Lord cometh, shall be found thus watching.