"But concerning the times and the seasons, brethren, ye have no need that aught be written unto you. For yourselves know perfectly that the day of the Lord so cometh as a thief in the night. When they are saying, Peace and safety, then sudden destruction cometh upon them, as travail upon a woman with child; and they shall in no wise escape. But ye, brethren, are not in darkness, that that day should overtake you as a thief: for ye are all sons of light, and sons of the day: we are not of the night, nor of darkness; so then let us not sleep, as do the rest, but let us watch and be sober. For they that sleep sleep in the night; and they that be drunken are drunken in the night. But let us, since we are of the day, be sober, putting on the breastplate of faith and love; and for a helmet, the hope of salvation. For God appointed us not unto wrath, but unto the obtaining of salvation through our Lord Jesus Christ, who died for us, that, whether we wake or sleep, we should live together with Him. Wherefore exhort one another, and build each other up, even as also ye do."--1 THESS. v. 1-11 (R.V.).
The last verses of the fourth chapter perfect that which is lacking, on one side, in the faith of the Thessalonians. The Apostle addresses himself to the ignorance of his readers: he instructs them more fully on the circumstances of Christ's second coming; and he bids them comfort one another with the sure hope that they and their departed friends shall meet, never to part, in the kingdom of the Saviour. In the passage before us he perfects what is lacking to their faith on another side. He addresses himself, not to their ignorance, but to their knowledge; and he instructs them how to improve, instead of abusing, both what they knew and what they were ignorant of, in regard to the last Advent. It had led, in some, to curious inquiries; in others, to a moral restlessness which could not bind itself patiently to duty; yet its true fruit, the Apostle tells them, ought to be hope, watchfulness, and sobriety.
"The day of the Lord" is a famous expression in the Old Testament; it runs through all prophecy, and is one of its most characteristic ideas. It means a day which belongs in a peculiar sense to God: a day which He has chosen for the perfect manifestation of Himself, for the thorough working out of His work among men. It is impossible to combine in one picture all the traits which prophets of different ages, from Amos downward, embody in their representations of this great day. It is heralded, as a rule, by terrific phenomena in nature: the sun is turned into darkness and the moon into blood, and the stars withdraw their light; we read of earthquake and tempest, of blood and fire and pillars of smoke. The great day ushers in the deliverance of God's people from all their enemies; and it is accompanied by a terrible sifting process, which separates the sinners and hypocrites among the holy people from those who are truly the Lord's. Wherever it appears, the day of the Lord has the character of finality. It is a supreme manifestation of judgment, in which the wicked perish for ever; it is a supreme manifestation of grace, in which a new and unchangeable life of blessedness is opened to the righteous. Sometimes it seemed near to the prophet, and sometimes far off; but near or far, it bounded his horizon; he saw nothing beyond. It was the end of one era, and the beginning of another which should have no end.
This great conception is carried over by the Apostle from the Old Testament to the New. The day of the Lord is identified with the Return of Christ. All the contents of that old conception are carried over along with it. Christ's return bounds the Apostle's horizon; it is the final revelation of the mercy and judgment of God. There is sudden destruction in it for some, a darkness in which there is no light at all; and for others, eternal salvation, a light in which there is no darkness at all. It is the end of the present order of things, and the beginning of a new and eternal order. All this the Thessalonians knew; they had been carefully taught it by the Apostle. He did not need to write such elementary truths, nor did he need to say anything about the times and seasons[18] which the Father had kept in His own power. They knew perfectly all that had been revealed on this matter, viz., that the day of the Lord comes exactly as a thief in the night. Suddenly, unexpectedly, giving a shock of alarm and terror to those whom it finds unprepared,--in such wise it breaks upon the world. The telling image, so frequent with the Apostles, was derived from the Master Himself; we can imagine the solemnity with which Christ said, "Behold, I come as a thief. Blessed is he that watcheth and keepeth his garments, lest he walk naked, and they see his shame."[19] The New Testament tells us everywhere that men will be taken at unawares by the final revelation of Christ as Judge and Saviour; and in so doing, it enforces with all possible earnestness the duty of watching. False security is so easy, so natural,--looking to the general attitude, even of Christian men, to this truth, one is tempted to say, so inevitable,--that it may well seem vain to urge the duty of watchfulness more. As it was in the days of Noah, as it was in the days of Lot, as it was when Jerusalem fell, as it is at this moment, so shall it be at the day of the Lord. Men will say, Peace and safety, though every sign of the times says, Judgment. They will eat and drink, plant and build, marry and be given in marriage, with their whole heart concentrated and absorbed in these transient interests, till in a moment suddenly, like the lightning which flashes from east to west, the sign of the Son of Man is seen in heaven. Instead of peace and safety, sudden destruction surprises them; all that they have lived for passes away; they awake, as from deep sleep, to discover that their soul has no part with God. It is too late then to think of preparing for the end: the end has come; and it is with solemn emphasis the Apostle adds, "They shall in no wise escape."