The Blessed Virgin Mary
The Perpetual Virginity
Mary was a virgin before, during, and after the birth of Jesus. The ‘brothers of the Lord’ in the Gospels are close kinsmen (cousins/relatives), not other children of Mary — which is how the word was regularly used.
The ‘brothers’ are sons of another Mary
James and Joses are called Jesus' ‘brothers,’ but the Gospel also names them as sons of ‘the other Mary’ (Mary of Clopas), not the Virgin. ‘Brother’ (adelphos) commonly covered cousins and kinsmen — Hebrew and Aramaic had no separate word for cousin.
Jesus entrusts Mary to John
From the Cross Jesus gives his mother into the care of the beloved disciple. In that culture a surviving son would never hand his mother to an outsider — unless there were no other sons.
Common objections
“Matthew 1:25 says Joseph knew her not ‘until’ she gave birth.”
‘Until’ (heōs) marks what happened up to a point without implying a change afterward — e.g. ‘Michal had no child until the day of her death.’ The verse stresses that Joseph was not involved in the conception; it says nothing about later.
“Luke calls Jesus her ‘firstborn’ — so there were others.”
‘Firstborn’ was a legal-religious status (the son to be consecrated to God, per Exodus 13), not a headcount. An only child is still the firstborn; Jewish tomb inscriptions call a mother's only son her firstborn.
Scripture quoted verbatim from the World English Bible (public domain).