Hebrews 7:15-17

15And this becomes even more evident if another priest arises in the likeness of Melchizedek,

16who 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.

17For it is attested [by God] of Him, “You (Christ) are a Priest forever According to the order of Melchizedek.”