Hebrews 7:11-19

11Now if perfection was through the Levitical priesthood (for based on it the people had been given the Torah), what further need was there for a different kohen to arise—designated according to the order of Melechizedek , not according to the order of Aaron?

12For whenever the priesthood is altered, out of necessity an alteration of law also takes place.

13For the one about whom these things are said belongs to another tribe, from which no one has officiated at the altar.

14For it is clear that our Lord has sprung forth from Judah—concerning this tribe, Moses said nothing about kohanim.

15And it is even more evident, if another kohen arises like Melechizedek —

16one made not by virtue of a Torah requirement of physical descent, but by virtue of the power of an indestructible life.

17For it is testified, “You are a kohen forever, according to the order of Melechizedek .”

18For on the one hand, a former requirement is set aside because of its weakness and ineffectiveness—

19for Torah made nothing perfect. But on the other hand, a better hope is introduced, through which we draw near to God.