The answer is: God

Mark 1:1 - Throughout the gospels Jesus is called the Son of God and had no genetic connection to Joseph. Jesus was born from God's power, the Holy Spirit, acting upon Mary and for this reason his father was God and his mother was Mary. He was therefore called both the Son of God and also the Son of Man.

The miraculous nature of Jesus' birth is a central theme in understanding his identity and mission. When Mark introduces his gospel, he lays the foundation with a profound declaration: Jesus is the Son of God. This title elevates Jesus, distinguishing him from mere mortals and emphasizing his divine origins. Now, here's a neat tidbit! In both the Hebrew Bible and the New Testament, the phrase "Son of God" often implies a special relationship with the divine, sometimes even referring to the whole nation of Israel.

Mary's unique role is significant too. Traditional beliefs state she remained a virgin when giving birth; considering the cultural elements around childbirth at the time, it highlights the extraordinary nature of Jesus’ entrance into the world. Mary, a humble woman from Nazareth, is often likened to figures from the Hebrew scriptures—echoing themes seen in the lives of influential matriarchs like Sarah and Hannah, whose miracles of conception shaped Israel’s history.

Additionally, referring to Jesus as the “Son of Man” brings another layer. This term, used by Jesus himself throughout the gospels, also has roots in Jewish writings, symbolizing a coming redeemer. The blend of both divine and human elements in Jesus underscores his role as a bridge between heaven and earth—a true champion of life's struggles, relating to everyone while inviting them into a relationship with the divine. What a fascinating approach to understand his unique nature and mission!