In these words the apostle confutes the error against which he had cautioned them, and gives the reasons why they should not expect the coming of Christ as just at hand. There were several events previous to the second coming of Christ; in particular, he tells them there would be,

I.A general apostasy, there would come a falling away first, Th2 2:3. By this apostasy we are not to understand a defection in the state, or from civil government, but in spiritual or religious matters, from sound doctrine, instituted worship and church government, and a holy life. The apostle speaks of some very great apostasy, not only of some converted Jews or Gentiles, but such as should be very general, though gradual, and should give occasion to the revelation of rise of antichrist, that man of sin. This, he says (Th2 2:5), he had told them of when he was with them, with design, no doubt, that they should not take offence nor be stumbled at it. And let us observe that no sooner was Christianity planted and rooted in the world than there began to be a defection in the Christian church. It was so in the Old Testament church; presently after any considerable advance made in religion there followed a defection: soon after the promise there was revolting; for example, soon after men began to call upon the name of the Lord all flesh corrupted their way, - soon after the covenant with Noah the Babel-builders bade defiance to heaven, - soon after the covenant with Abraham his seed degenerated in Egypt, - soon after the Israelites were planted in Canaan, when the first generation was worn off, they forsook God and served Baal, - soon after God's covenant with David his seed revolted, and served other gods, - soon after the return out of captivity there was a general decay of piety, as appears by the story of Ezra and Nehemiah; and therefore it was no strange thing that after the planting of Christianity there should come a falling away.

II.A revelation of that man of sin, that is (Th2 2:3), antichrist would take his rise from this general apostasy. The apostle afterwards speaks of the revelation of that wicked one (Th2 2:8), intimating the discovery which should be made of his wickedness, in order to his ruin: here he seems to speak of his rise, which should be occasioned by the general apostasy he had mentioned, and to intimate that all sorts of false doctrines and corruptions should centre in him. Great disputes have been as to who or what is intended by this man of sin and son of perdition: and, if it be not certain that the papal power and tyranny are principally or only intended, yet this is plain, What is here said does very exactly agree thereto. For observe,

1.The names of this person, or rather the state and power here spoken of. He is called the man of sin, to denote his egregious wickedness; not only is he addicted to, and practises, wickedness himself, but he also promotes, countenances, and commands sin and wickedness in others; and he is the son of perdition, because he himself is devoted to certain destruction, and is the instrument of destroying many others both in soul and body. These names may properly be applied, for these reasons, to the papal state; and thereto agree also,

2.The characters here given, Th2 2:4. (1.) That he opposes and exalts himself above all that is called God, or is worshipped; and thus have the bishops of Rome not only opposed God's authority, and that of the civil magistrates, who are called gods, but have exalted themselves above God and earthly governors, in demanding greater regard to their commands than to the commands of God or the magistrate. (2.) As God, he sits in the temple of God, showing himself that he is God. As God was in the temple of old, and worshipped there, and is in and with his church now, so the antichrist here mentioned is some usurper of God's authority in the Christian church, who claims divine honours; and to whom can this better apply than to the bishops of Rome, to whom the most blasphemous titles have been given, as Dominus Deus noster papa - Our Lord God the pope; Deus alter in terr - Another God on earth; Idem est dominium Dei et papae - The dominion of God and the pope is the same?

3.His rise is mentioned, Th2 2:6, Th2 2:7. Concerning this we are to observe two things: - (1.) There was something that hindered or withheld, or let, until it was taken away. This is supposed to be the power of the Roman empire, which the apostle did not think fit to mention more plainly at that time; and it is notorious that, while this power continued, it prevented the advances of the bishops of Rome to that height of tyranny to which soon afterwards they arrived. (2.) This mystery of iniquity was gradually to arrive at its height; and so it was in effect that the universal corruption of doctrine and worship in the Romish church came in by degrees, and the usurpation of the bishops of Rome was gradual, not all at once; and thus the mystery of iniquity did the more easily, and almost insensibly, prevail. The apostle justly calls it a mystery of iniquity, because wicked designs and actions were concealed under false shows and pretences, at least they were concealed from the common view and observation. By pretended devotion, superstition and idolatry were advanced; and, by a pretended zeal for God and his glory, bigotry and persecution were promoted. And he tells us that this mystery of iniquity did even then begin, or did already work. While the apostles were yet living, the enemy came, and sowed tares; there were then the deeds of the Nicolaitans, persons who pretended zeal for Christ, but really opposed him. Pride, ambition, and worldly interest of church-pastors and church-rulers, as in Diotrephes and others, were the early working of the mystery of iniquity, which, by degrees, came to that prodigious height which has been visible in the church of Rome.

4.The fall or ruin of the antichristian state is declared, Th2 2:8. The head of this antichristian kingdom is called that wicked one, or that lawless person who sets up a human power in competition with, and contradiction to, the divine dominion and power of the Lord Jesus Christ; but, as he would thus manifest himself to be the man of sin, so the revelation or discovery of this to the world would be the sure presage and the means of his ruin. The apostle assures the Thessalonians that the Lord would consume and destroy him; the consuming of him precedes his final destruction, and that is by the Spirit of his mouth, by his word of command; the pure word of God, accompanied with the Spirit of God, will discover this mystery of iniquity, and make the power of antichrist to consume and waste away; and in due time it will be totally and finally destroyed, and this will be by the brightness of Christ's coming. Note, The coming of Christ to destroy the wicked will be with peculiar glory and eminent lustre and brightness.

5.The apostle further describes the reign and rule of this man of sin. Here we are to observe, (1.) The manner of his coming, or ruling, and working: in general, that it is after the example of Satan, the grand enemy of souls, the great adversary of God and man. He is the great patron of error and lies, the sworn enemy of the truth as it is in Jesus and all the faithful followers of Jesus. More particularly, it is with Satanical power and deceit. A divine power is pretended for the support of this kingdom, but it is only after the working of Satan. Signs and wonders, visions and miracles, are pretended; by these the papal kingdom was first set up, and has all along been kept up, but they have false signs to support false doctrines; and lying wonders, or only pretended miracles that have served their cause, things false in fact, or fraudulently managed, to impose upon the people: and the diabolical deceits with which the antichristian state has been supported are notorious. The apostle calls it all deceivableness of unrighteousness, Th2 2:10. Others may call them pious frauds, but the apostle called them unrighteous and wicked frauds; and, indeed, all fraud (which is contrary to truth) is an impious thing. Many are the subtle artifices the man of sin has used, and various are the plausible pretences by which he had beguiled unwary and unstable souls to embrace false doctrines, and submit to his usurped dominion. (2.) The persons are described who are his willing subjects, or most likely to become such, Th2 2:10. They are such as love not the truth that they may be saved. They heard the truth (it may be), but they did not love it; they could not bear sound doctrine, and therefore easily imbibed false doctrines; they had some notional knowledge of what was true, but they indulged some powerful prejudices, and so became a prey to seducers. Had they loved the truth, they would have persevered in it, and been preserved by it; but no wonder if they easily parted with what they never had any love to. And of these persons it is said that they perish or are lost; they are in a lost condition, and in danger to be lost for ever. For,

6.We have the sin and ruin of the subjects of antichrist's kingdom declared, Th2 2:11, Th2 2:12. (1.) Their sin is this: They believed not the truth, but had pleasure in unrighteousness: they did not love the truth, and therefore they did not believe it; and, because they did not believe the truth, therefore they had pleasure in unrighteousness, or in wicked actions, and were pleased with false notions. Note, An erroneous mind and vicious life often go together and help forward one another. (2.) Their ruin is thus expressed: God shall send them strong delusions, to believe a lie. Thus he will punish men for their unbelief, and for their dislike of the truth and love to sin and wickedness; not that God is the author of sin, but in righteousness he sometimes withdraws his grace from such sinners as are here mentioned; he gives them over to Satan, or leaves them to be deluded by his instruments; he gives them up to their own hearts' lusts, and leaves them to themselves, and then sin will follow of course, yea, the worst of wickedness, that shall end at last in eternal damnation. God is just when he inflicts spiritual judgments here, and eternal punishments hereafter, upon those who have no love to the truths of the gospel, who will not believe them, nor live suitably to them, but indulge false doctrines in their minds, and wicked practices in their lives and conversations.

For the mystery of iniquity doth already work - There is a system of corrupt doctrine, which will lead to the general apostasy, already in existence, but it is a mystery; it is as yet hidden; it dare not show itself, because of that which hindereth or withholdeth. But when that which now restraineth shall be taken out of the way, then shall that wicked one be revealed-it will then be manifest who he is, and what he is. See the observations at the end of this chapter (note).

For the mystery of iniquity doth already work,.... Or "the mystery of that wicked one", as the Syriac; meaning either antichrist himself, and the spirit of antichrist, which were already in the world, Jo1 2:18, "mystery" being one of the names of antichrist, Rev 17:5 and anciently this word was engraven on the mitres of the popes of Rome: or the evil doctrines and practices of antichrist may be intended; for as the doctrine of the Gospel is called a mystery, and the mystery of godliness; so the doctrines and practices of antichrist may be called the mystery of iniquity, especially as they were now secretly spread, imbibed, and practised: the foundations of it were now laying in the church by false teachers; for errors and heresies of every sort, respecting the person and offices of Christ, and in opposition to them, were now broached; idolatry, and holding communion with idolaters, now obtained; worshipping of angels was used by some; and superstition and will worship, worship after the commandments of men, were practised; days, and months, and years, distinguished by Jews and Pagans, and difference of meats, were observed; celibacy and virginity began to be admired and commended; dominion and magistracy were despised, and church authority contemned, and many, as Diotrephes, loved to have the pre-eminence; and the doctrine of justification by the works of the law was industriously spread, and zealously preached and received; all which laid the foundation, and are the life and soul of popery:

only he who now letteth, will let, until he be taken out of the way; that is, the Roman empire and Roman emperors, and which were by degrees entirely removed, and so made way for the revelation of this wicked one: and which was done partly by Constantine the emperor receiving the Christian faith, whereby the Roman empire as Pagan ceased; and by increasing the riches of the church, and feeding the pride, ambition, and covetousness of the bishops, especially the bishop of Rome; and next by removing the seat of the empire from Rome to Byzantium, which he called Constantinople: here the Greek emperors continued in succession, and neither they themselves, nor even their exarchs, resided at Rome, but at Ravenna; so that way was made for antichrist to come to his seat, and there was nothing to rival and eclipse the grandeur, power, and glory of the Roman popes: and that which let was also taken out of the way, by the division of the empire, by Theodosius, giving to his elder son Arcadius, the eastern, and to the younger, Honorius, the western parts of it: the eastern empire was in process of time seized upon and possessed by Mahomet and the Saracens; and the western empire was overrun by the Goths, Vandals, and Huns, and became extinct about the year 476, in Augustulus, the last of the Roman emperors, who was obliged to abdicate the government by Odoacer king of the Heruli; when the kingdom of the Lombards took place in Italy, and afterwards that was translated to Charles the great, king of the French; so that there was nothing more of the Roman empire remaining than the bare name, as at this day; and by this means the popes of Rome got to the height of their power and glory, which is meant by the revelation of the man of sin.

the mystery of iniquity--the counterwork to "the mystery of godliness" (Ti1 3:16). Anti-Christianity latently working, as distinguished from its final open manifestation. "Mystery" in Scripture means, not what remains always a secret, but that which is for a while hidden, but in due time manifested (compare Eph 3:4-5). Satan will resort to a mode of opposition more conformed to the then imminent "appearing" and "presence" of the Saviour, and will anticipate Him with a last effort to maintain the dominion of the world [DE BURGH], just as at His first advent he rushed into open opposition, by taking possession of the bodies of men. "Iniquity," Greek, "lawlessness"; defiant rejection of God's law (compare Note, see on Zac 5:9, Zac 5:10). "Wickedness" (translated by the Septuagint by the same Greek, meaning "lawlessness," which Paul employs here), embodied there as a woman, answers to "the mystery of iniquity," here embodied finally in "the man of sin": as the former was ultimately banished for ever from the Holy Land to her own congenial soil, Babylon, so iniquity and the man of sin shall fall before Michael and the Lord Himself, who shall appear as the Deliverer of His people (Dan 12:1-3; Zac 14:3-9). Compare Mat 12:43. The Jewish nation dispossessed of the evil spirit, the demon of idolatry being cast out through the Babylonian captivity, receives ultimately a worse form of the evil spirit, Christ-opposing self-righteousness. Also, the Christian Church in course of time taken possession of by the demon of Romish idolatry, then dispossessed of it by the Reformation, then its house "garnished" by hypocrisy, secularity, and rationalism, but "swept empty" of living faith, then finally apostatizing and repossessed by "the man of sin," and outwardly destroyed for a brief time (though even then Christ shall have witnesses for Him among both the Jews, Zac 13:9, and Gentiles, Mat 28:20), when Christ shall suddenly come (Dan 11:32-45; Luk 18:7-8).

already-- (Jo2 1:9-10; Col 2:18-23; Ti1 4:1); compare "even now already" (Jo1 2:18; Jo1 4:3) as distinguished from "in his own time" of being revealed hereafter. Antiquity, it appears from hence, is not a justification for unscriptural usages or dogmas, since these were "already," even in Paul's time, beginning to spring up: the written word is the only sure test. "Judaism infecting Christianity is the fuel; the mystery of iniquity is the spark." "It is one and the same impurity diffusing itself over many ages" [BENGEL].

only he who now letteth will let--The italicized words are not in the Greek. Therefore, translate rather, "only (that is, the continuance of the MYSTERY of iniquity-working will be only) until he who now withholdeth (the same Greek as in Th2 2:6) be taken out of the way." "Only (waiting, Heb 10:13) until he," &c. Then it will work no longer in mystery, but in open manifestation.