1. Korinther 5:1

THE INCESTUOUS PERSON AT CORINTH: THE CORINTHIANS REPROVED FOR CONNIVANCE, AND WARNED TO PURGE OUT THE BAD LEAVEN. QUALIFICATION OF HIS FORMER COMMAND AS TO ASSOCIATION WITH SINNERS OF THE WORLD. (Co1 5:1-13) commonly--rather, "actually" [ALFORD]. Absolutely [BENGEL]. "It is reported," implies, that the Corinthians, though they "wrote" (Co1 7:1) to Paul on other points, gave him no information on those things which bore against themselves. These latter matters reached the apostle indirectly (Co1 1:11). so much as named--The oldest manuscripts and authorities omit "named": "Fornication of such a gross kind as (exists) not even among the heathen, so that one (of you) hath (in concubinage) his father's wife," that is, his stepmother, while his father is still alive (Co2 7:12; compare Lev 18:8). She was perhaps a heathen, for which reason he does not direct his rebuke against her (compare Co1 5:12-13). ALFORD thinks "have" means have in marriage: but the connection is called "fornication," and neither Christian nor Gentile law would have sanctioned such a marriage, however Corinth's notorious profligacy might wink at the concubinage.

Here the apostle states the case; and, I. Lets them know what was the common or general report concerning them, that one of their community was guilty of fornication, Co1 5:1. It was told in all places, to their dishonour, and the reproach of Christians. And it was the more reproachful because it could not be denied. Note, The heinous sins of professed Christians are quickly noted and noised abroad. We should walk circumspectly, for many eyes are upon us, and many mouths will be opened against us if we fall into any scandalous practice. This was not a common instance of fornication, but such as was not so much as named among the Gentiles, that a man should have his father's wife - either marry her while his father was alive, or keep her as his concubine, either when he was dead or while he was alive. In either of these cases, his criminal conversation with her might be called fornication; but had his father been dead, and he, after his decease, married to her, it had been incest still, but neither fornication nor adultery in the strictest sense. But to marry her, or keep her as a concubine, while his father was alive, though he had repudiated her, or she had deserted him, whether she were his own mother or not, was incestuous fornication: Scelus incredibile (as Cicero calls it), et prater unum in omni vit inauditum (Orat. pro Cluent.), when a woman had caused her daughter to be put away, and was married to her husband. Incredible wickedness! says the orator; such I never heard of in all my life besides. Not that there were no such instances of incestuous marriages among the heathens; but, whenever they happened, they gave a shock to every man of virtue and probity among them. They could not think of them without horror, nor mention them without dislike and detestation.…

5:1-8 Paul confronts sexual immorality in the church and instructs the Christians to expel a shameless offender from their fellowship. 5:1 sexual immorality: A man was having sex with his stepmother. Such behavior even pagans didn’t do: It violated both the law of Moses (see Lev 18:7-8) and Roman law (Gaius, Institutes 1.63).