But the reason why the holy evangelists give the genealogy of Joseph, although our Saviour was not His son, but the son of the Holy Ghost and the holy Virgin, and how the mother of our Lord herself is proved to be of the race and seed of David, I have treated fully in the First Book of my Questions and Answers concerning the genealogy of our Saviour, and must refer those interested to that book, as the present subject is now occupying me.