Paul wishes that men and woman abstain from sex, but tells them to "come together" to avoid being tempted by Satan. 7:5

Finally, after discouraging marriage for eight verses, Paul concedes that "it is better to marry than to burn." 7:9

The Pauline Privilege: A believer may either keep or divorce an unbelieving spouse. 7:12-13

"Else were your children unclean; but now are they holy."
The children of nonbelievers are unclean. (But believers' kids are holy.) 7:14

Those who are unmarried should never marry. 7:27

Paul says that the other apostles traveled with their wives - including Peter. We know from Mark 1:30 that Peter had a wife, since Jesus cured his mother-in-law. Paul confirms Peter's marital status here.