Mark 13:34

For the Son of man is as a man taking a far journey, &c.--The idea thus far is similar to that in the opening part of the parable of the talents (Mt 25:14, 15). and commanded the porter--the gatekeeper. to watch--pointing to the official duty of the ministers of religion to give warning of approaching danger to the people.

“But concerning that day or that hour, no one knows, not even the angels in heaven, nor the Son, but only the Father. Be on guard, keep awake. For you do not know when the time will come. It is like a man going on a journey, when he leaves home and puts his servants in charge, each with his work, and commands the doorkeeper to stay awake.

“But concerning that day or that hour, no one knows, not even the angels in heaven, nor the Son, but only the Father. Be on guard, keep awake. For you do not know when the time will come. It is like a man going on a journey, when he leaves home and puts his servants in charge, each with his work, and commands the doorkeeper to stay awake. Therefore stay awake—for you do not know when the master of the house will come, in the evening, or at midnight, or when the rooster crows, or in the morning— lest he come suddenly and find you asleep. And what I say to you I say to all: Stay awake.” Mark 13:32-37 These verses conclude Mark's report of our Lord's prophecy on the Mount of Olives. They ought to form a personal application of the whole discourse to our consciences. We learn from these verses, that the exact time of our Lord Jesus Christ's second advent is purposely withheld from His church . The event is certain. The precise day and hour are not revealed. "Of that day and hour knows no man, no, not the angels which are in heaven." There is deep wisdom and mercy in this intentional silence. We have reason to thank God that the thing has been hidden from us. Uncertainty about the date of the Lord's return is calculated to keep believers in an attitude of constant expectation, and to preserve them from despondency. What a dreary prospect the early church would have had before it, if it had known for certain that Christ would not return to earth for at least fifteen hundred years! The hearts of men like Athanasius, Chrysostom, and Augustine, might well have sunk within them, if they had been aware of the centuries of darkness through which the world would pass, before their Master came back to take the kingdom. What a quickening motive, on the other hand, true Christians have perpetually had, for a close walk with God!

Left his house - Οικιαν, family. Our blessed Lord and Master, when he ascended to heaven, commanded his servants to be faithful and watchful. This fidelity to which he exhorts his servants consists in doing every thing well which is to be done, in the heart or in the family, according to the full extent of the duty.

Who left his house - The word “house” often means family. Our Saviour here represents himself as going away, leaving his household the church, assigning to the apostles and all his servants their duty, and leaving it uncertain when he would return. Since his return was a matter of vast consequence, and as the affairs of his kingdom were entrusted to them, just as the affairs of a house are to servants when the master is absent, so it was of vast importance that they should be faithful at their post, that they should defend the house from danger, and be ready for his return. The porter - The doorkeeper. To the janitor or doorkeeper was entrusted particularly the care of the house, whose duty it was to attend faithfully on those who came and those who left the house.