But as he considered this, behold, an angel of the Lord appeared to him in a dream, saying, "Joseph, son of David, do not fear to take Mary your wife, for that which is conceived in her is of the Holy Spirit; she will bear a son, and you shall call his name Jesus, for he will save his people from their sins."

Matthew 1:20-21

"The day of the Nativity of the Mother of God is a day of universal joy, because through the Mother of God, the entire human race was renewed, and the sorrow of the first mother, Eve, was transformed into joy."

- St. John Damascene