Q: What is the blessed fruit of thy womb Jesus?A: This sentence is taken from the prayer, the "Hail Mary" and the Gospel of St. Luke 1:42 "Blessed art thou among women and blessed is the fruit of thy womb." The "Hail Mary" is addressing Mary, the mother of God. It is her womb that is being spoken of in this sentence. The fruit of Mary's womb, that is, the child born of it, is Jesus. "blessed" is the predicate of "Jesus", Who is the fruit of Mary's womb. The sense is thus: "Blessed is Jesus, the fruit of thy womb".