Description: If Jesus' Mother Mary was always a virgin, why does the Bile refer to Jesus' "brothers and sisters"? The Catholic Catechism explains it thus: The Church has always understood these passages as not referring to other children of the Virgin Mary. According to Old Testament expression, "brothers and sisters" could be close relations, not necessarily siblings. In fact, it is pointed out, James and John referred to as "brothers of Jesus" are the sons of another Mary, a disciple of Christ whom St. Matthew significantly calls "the other Mary". This is Peggy Stanton and this has been the Order of Malta's Minute with the Catechism.