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The head of every man is Christ; and the head of the woman is the man. 11:3
Trivia: In First Corinthians 7:29, why did Paul say married couples shouldn't have sex?
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.