5. Besides excommunication (of which the Corinthians themselves had the power), Paul delegates here to the Corinthian Church his own special power as an apostle, of inflicting corporeal disease or death in punishment for sin ("to deliver to Satan such an one," that is, so heinous a sinner). For instances of this power, see Ac 5:1-11; 13:11; 1Ti 1:20. As Satan receives power at times to try the godly, as Job (Job 2:4-7) and Paul (2Co 12:7; compare also as to Peter, Lu 22:31), much more the ungodly. Satan, the "accuser of the brethren" (Re 12:10) and the "adversary" (1Pe 5:8), demands the sinner for punishment on account of sin (Zec 3:1). When God lets Satan have his way, He is said to "deliver the sinner unto Satan" (compare Ps 109:6). Here it is not finally; but for the affliction of the body with disease, and even death (1Co 11:30, 32), so as to destroy fleshly lust. He does not say, "for the destruction of the body," for it shall share in redemption (Ro 8:23); but of the corrupt "flesh" which "cannot inherit the kingdom of God," and the lusts of which had prompted this offender to incest (Ro 7:5; 8:9, 10). The "destruction of the flesh" answers to "mortify the deeds of the body" (Ro 8:13), only that the latter is done by one's self, the former is effected by chastisement from God (compare 1Pe 4:6):

     20. Hymenaeus—There is no difficulty in supposing him to be the Hymenæus of 2Ti 2:17. Though "delivered over to Satan" (the lord of all outside the Church, Ac 26:18, and the executor of wrath, when judicially allowed by God, on the disobedient, 1Co 5:5; 2Co 12:7), he probably was restored to the Church subsequently, and again troubled it. Paul, as an apostle, though distant at Rome pronounced the sentence to be executed at Ephesus, involving, probably, the excommunication of the offenders (Mt 18:17, 18). The sentence operated not only spiritually, but also physically, sickness, or some such visitation of God, falling on the person excommunicated, in order to bring him to repentance and salvation. Alexander here is probably "the coppersmith" who did Paul "much evil" when the latter visited Ephesus. The "delivering him to Satan" was probably the consequence of his withstanding the apostle (2Ti 4:14, 15); as the same sentence on Hymenæus was the consequence of "saying that the resurrection is past already" (2Ti 2:18; his putting away good conscience, naturally producing shipwreck concerning FAITH, 1Ti 1:19. If one's religion better not his morals, his moral deficiencies will corrupt his religion. The rain which falls pure from heaven will not continue pure if it be received in an unclean vessel [ARCHBISHOP WHATELY]). It is possible that he is the Alexander, then a Jew, put forward by the Jews, doubtless against Paul, at the riot in Ephesus (Ac 19:33).