This long genealogy is given for a good reason: to show how this Jesus fulfills the prophecies that tell us the Anointed One will be a descendant of Abraham and of David.

Some of the women in Jesus’ line are given to show how God is gracious to everyone, even to prostitutes and adulterers. Because some of the women listed weren’t Israelites, but were strangers and foreigners, they foreshadow all the foreigners God will adopt into His church through Jesus. Some of the children in God’s family are conceived under strange circumstances (like Tamar’s twins being conceived as she played the harlot, and like King Solomon being born to adulterous parents). Now that it has been established this is an unusual family, what happens next shouldn’t be a surprise—the conception of a baby under very strange circumstances.

This is remarkable, because Mary has never had sex. She and Joseph have not even spent very much time alone, but they are pledged to each other and their wedding feast has been planned.

She has never even kissed a man. She is a virgin, yet she is pregnant. Miraculous! On the other hand, Joseph suspects that Mary has cheated on him and had sex with another man. He knows he will have to break their engagement, but he decides to do this quietly. Mary understands that it is God, in the Person of the Holy Spirit, who has made her pregnant.