A.T. Robertson Commentary 1 Corinthians 7:4

"The wife hath not power over her own body, but the husband: and likewise also the husband hath not power over his own body, but the wife." — 1 Corinthians 7:4 (ASV)

The wife (η γυνη). The wife is mentioned first, but the equality of the sexes in marriage is clearly presented as the way to keep marriage undefiled (Hebrews 13:4). "In wedlock separate ownership of the person ceases" (Robertson and Plummer).