An angry father has children .....
The genetics are not black and white, we are all different .....but the fathers anger is seen in the children. The character traits are often seen in the next generation.
Inheritance is proven, physically and emotionally.
But we have 2 parents, so we can get more of one or the other parrent....
The conception of Jesus was a miracle unexplained.... yes it was the Holy Spirit and the virgin Mary but the deeper details are not explained.
But Jesus was flesh and blood like you and me. And Mary was a sinner too.
Joseph was the legal father. The throne of David belonged to him.
Mary was the mother and she to can trace her decendents back to David. Luke 3...
So both legal and genetics take Jesus back to David.
Jeremiah 22:30 says of Coniah, “Record this man as childless . . . none of his descendants will succeed in sitting on the throne of David or ruling again in Judah.” This created a “Catch 22” of sorts. Only a descendant of Solomon could be king, yet this line was cursed. Therefore, only Jesus could fulfill the Davidic covenant. Jesus had the legal right to be king through Joseph but, because He was virgin born, the curse on Coniah did not apply to Him. Instead, He was the son of David through His mother Mary. Both genealogies are significant in establishing the Lord Jesus as the true Davidic king.
Luk 3:23 And Jesus himself began to be about thirty years of age, being (as was supposed) the son of Joseph, which was the son of Heli,
But the son in law of Heli was Joseph...
Joseph's father in law was Heli so this was Mary's genealogy.
Luk 3:31 Which was the son of Melea, which was the son of Menan, which was the son of Mattatha, which was the son of Nathan, which was the son of David,
Joseph's genealogy is .. according to Matthew... Mat 1:6 And Jesse begat David the king; and David the king begat Solomon of her that had been the wife of Urias;......
Mat 1:16 And Jacob begat Joseph the husband of Mary, of whom was born Jesus, who is called Christ.