1Co 7:2. Διὰ, on account of) comp. the for, 1Co 7:5.-τὰς πορνείας, fornications) constantly practised at Corinth [and not even considered to be sins by the heathens, and especially by the Greeks.-V.g.], to which unmarried persons might be easily allured. The plural denotes irregular lusts, and is on that account more opposed to the unity of the marriage relation [wherein there is but one consort].-τὴν ἑαυτοῦ, his own) the same as ἴδιον, her own, which immediately after occurs. The same variation occurs in Eph 5:22-23. ἑαυτοῦ, his own, indicates the rights of the husband. Both words exclude all community, in which polygamy consists, comp. 1Co 7:4. Now the reason, why a man should have a wife, is the same as that, for which he should retain her, namely, to avoid fornication. Hence also concubinage is refuted, for a concubine is either a wife or she is not; if she is not, there is sin, if she is, then she ought to continue, 1Co 7:10-11.