what does the bible say?
The Old Testament foretells that the Messiah would be born of a virgin (Isaiah 7:14), but it does not say Mary remained a virgin after the birth. The New Testament clearly affirms that Mary was a virgin when Jesus was conceived and born through the miraculous work of the Holy Spirit (Matthew 1:22–23; Luke 1:34–35). Matthew 1:25 states that Joseph did not know Mary "until" she gave birth, strongly implying normal marital relations afterward (emphasis added). The Gospels also name Jesus’ brothers and sisters, meaning that Mary and Joseph had other children (Matthew 13:55–56; Mark 6:3).
The doctrine of Mary’s perpetual virginity developed within Catholic, Orthodox, and some historical Protestant traditions to emphasize her unique role in the Incarnation. However, this doctrine rests on apostolic tradition, church authority, and theological reflection rather than biblical teaching. While Mary is “favored" (Luke 1:28), the Bible uses similar language for many other biblical figures, such as Noah, Gideon, and David (Genesis 6:8; Judges 6:12; 1 Samuel 13:14). God’s favor signifies gracious calling for a purpose—not a lifelong state of physical consecration—supporting the conclusion that perpetual virginity is not biblical.