2:4 Who opposeth and {f} exalteth himself above all that is called God, or that is worshipped; {4} so that he as God sitteth in the temple of God, shewing himself that he is God.
(f) All men know who he is that says he can shut up heaven and open it at his pleasure, and takes upon himself to be lord and master above all kings and princes, before whom kings and princes fall down and worship, honouring that antichrist as a god.
(4) He foretells that the antichrist (that is, whoever he is that will occupy that seat that falls away from God) will not reign outside of the Church, but in the very bosom of the Church.
2:4 Who opposeth and exalteth himself above all that is called God. I shall endeavor in a few words to identify this power. Various explanations have been given, but there is only one power that exhibits all the marks given by Paul. Observe these: (1) The man of sin exalts himself above God. (2) He sits in the temple, that is, in the church, for that is always the sense in which Paul uses the term. He is a church power. (3) He claims powers that only belong to divinity. (4) He shows off signs and lying wonders (2Th 2:9); or, in other words, lays a claim to miraculous powers. Every one of these marks applies to the papacy: (1) Its development was simultaneous with that of the apostasy. (2) Its development was let (hindered) until the pagan Roman empire fell, but was rapid after it was taken out of the way (2Th 2:7). (3) The papacy has set aside divine laws and has made other spiritual laws to bind men, and has claimed divine prerogatives. A newly-elected Pope is adored and styled Lord God, the Pope. (4) It is in the temple of God, that is, it arose in the church, and still claims to be the Holy Catholic Church. (5) The claim of Infallibility is sitting as God in the temple. (6) The papacy has always claimed miraculous powers, and it is a fact well known that it has often worked off lying wonders (2Th 2:9). No fact is better established than that the hierarchy of the church have often deceived by false miracles. Indeed, these have often been detected and explained.
2:1-4 If errors arise among Christians, we should set them right; and good men will be careful to suppress errors which rise from mistaking their words and actions. We have a cunning adversary, who watches to do mischief, and will promote errors, even by the words of Scripture. Whatever uncertainty we are in, or whatever mistakes may arise about the time of Christ's coming, that coming itself is certain. This has been the faith and hope of all Christians, in all ages of the church; it was the faith and hope of the Old Testament saints. All believers shall be gathered together to Christ, to be with him, and to be happy in his presence for ever. We should firmly believe the second coming of Christ; but there was danger lest the Thessalonians, being mistaken as to the time, should question the truth or certainty of the thing itself. False doctrines are like the winds that toss the water to and fro; and they unsettle the minds of men, which are as unstable as water. It is enough for us to know that our Lord will come, and will gather all his saints unto him. A reason why they should not expect the coming of Christ, as at hand, is given. There would be a general falling away first, such as would occasion the rise of antichrist, that man of sin. There have been great disputes who or what is intended by this man of sin and son of perdition. The man of sin not only practises wickedness, but also promotes and commands sin and wickedness in others; and is the son of perdition, because he is devoted to certain destruction, and is the instrument to destroy many others, both in soul and body. 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 a usurper of God's authority in the Christian church, who claims Divine honours.