Mark 13:33

Some will perhaps think, that it would have been much better, if the Almighty had not left the hour of death uncertain; as in that case, they would not have been so solicitous with regard to its arrival. But St. Augustine, St. Gregory, and other saints assure us, on the contrary, that it is a very great mercy of God to keep us in this ignorance, that we may always be prepared for it. For, if we knew the precise period, this assurance would give occasion of living more unguardedly, and of sinning more freely. If, with this uncertainty of the hour of our death, we live notwithstanding, so very remissly; what should we do, were we assured that we were not to die for some years? Sts. Gregory, Augustine, and Bonaventure say, that God chose to leave us in this uncertainty, purposely to prevent all attachment to temporal things; that, seeing every hour, nay every moment, we may lose them, we may not be tied to them, but aspire to those we shall always possess, when once we have obtained them. Fool, says the Son of God to the rich covetous man, (Luke xii. 20.) this night thy soul shall be required of thee, and what then will become of all these riches thou hast amassed. (St. Bonaventure)

III. "As to both, your duty is to watch and pray. Therefore the time is kept a secret, that you may be engaged to stand always upon your guard (v. 33); Take ye heed of every thing that would indispose you for your Master's coming, and would render your accounts perplexed, and your spirits so too; watch for his coming, that it may not at any time be a surprise to you, and pray for that grace which is necessary to qualify you for it, for ye know not when the time is; and you are concerned to be ready for that every day, which may come any day." This he illustrates, in the close, by a parable.

Verses 28-37 We have the application of this prophetic sermon. As to the destruction of Jerusalem, expect it to come very shortly. As to the end of the world, do not inquire when it will come, for of that day and that hour knoweth no man. Christ, as God, could not be ignorant of anything; but the Divine wisdom which dwelt in our Saviour, communicated itself to his human soul according to the Divine pleasure. As to both, our duty is to watch and pray. Our Lord Jesus, when he ascended on high, left something for all his servants to do. We ought to be always upon our watch, in expectation of his return. This applies to Christ's coming to us at our death, as well as to the general judgment. We know not whether our Master will come in the days of youth, or middle age, or old age; but, as soon as we are born, we begin to die, and therefore we must expect death. Our great care must be, that, whenever our Lord comes, he may not find us secure, indulging in ease and sloth, mindless of our work and duty. He says to all, Watch, that you may be found in peace, without spot, and blameless.