Heidelberg Catechism – Lord’s Day 14
Q. What is the meaning of: “Conceived by the Holy Spirit and born of the virgin Mary”?
A. That the eternal Son of God, who is and remains true and eternal God, took upon himself our true manhood from the flesh and blood of the Virgin Mary through the action of the Holy Spirit, so that he might also be the true seed of David, like his fellow men in all things, except for sin.
Q. What benefit do you receive from the Holy conception and birth of Christ?
A. That he is our Mediator, and that, in God’s sight, he covers over with his innocence and perfect holiness the sinfulness in which I have been conceived.