Actually it is rather more important to Christianity. Jesus as the Messiah is predicated on his lineage from King David.
This is why the New Testament commences with proving Jesus's direct lineage from King David. Without it, Jesus is not the Messiah, and Christianity is baseless.
This is why the New Testament commences with proving Jesus's direct lineage from King David. Without it, Jesus is not the Messiah, and Christianity is baseless.