Heidelberg Catechism - Question 35
Q
35
What do you confess when you say: He was conceived by the Holy Spirit, born of the virgin Mary?
A
The eternal Son of God, who is and remains true and eternal God, took upon Himself true human nature from the flesh and blood of the virgin Mary, through the working of the Holy Spirit. Thus He is also the true seed of David, and like His brothers in every respect, yet without sin.
