CCC 510
Profession of Faith›SECTION TWO I. THE CREEDS›CHAPTER TWO I BELIEVE IN JESUS CHRIST, THE ONLY SON OF GOD›Paragraph 2. "CONCEIVED BY THE POWER OF THE HOLY SPIRIT AND BORN OF THE VIRGIN MARY"
Mary "remained a virgin in conceiving her Son, a virgin in giving birth to him, a virgin in carrying him, a virgin in nursing him at her breast, always a virgin" (St. Augustine, Serm. 186, 1: PL 38, 999): with her whole being she is "the handmaid of the Lord" ( Lk 1:38).