'Ancestry' in the Bible

The record of the genealogy of Jesus the Messiah, the son (descendant) of David, the son (descendant) of Abraham:

But this person [Melchizedek] who is not from their Levitical ancestry received tithes from Abraham and blessed him who possessed the promises [of God].

who has become a priest, not on the basis of a physical and legal requirement in the Law [concerning his ancestry as a descendant of Levi], but on the basis of the power of an indestructible and endless life.