11 Now if perfection could have been attained through the Levitical priesthood (for on this basis the people received the law), why was there still need for another priest to appear—one in the order of Melchizedek and not in the order of Aaron?
12 For when the priesthood is changed, the law must be changed as well.
13 He of whom these things are said belonged to a different tribe, from which no one has ever served at the altar.
14 For it is clear that our Lord descended from Judah, a tribe as to which Moses said nothing about priests.
15 And this point is even more clear if another priest like Melchizedek appears,
16 one who has become a priest not by a law of succession, but by the power of an indestructible life.
17 For it is testified: “You are a priest forever in the order of Melchizedek.”
18 So the former commandment is set aside because it was weak and useless
19 (for the law made nothing perfect), and a better hope is introduced, by which we draw near to God.