2 Bible Verses about Priesthood, In Ot

Called of God an high priest, after the order of Melchisedek.

If then perfection were by the Levitical priesthood, (for under it the people received the law) what farther need was there that another priest should rise, after the order of Melchisedek, and not be called after the order of Aaron? For the priesthood being changed, there is also necessarily a change of the law. For he of whom these things are spoken, pertaineth to another tribe, of which no man attended on the altar.read more.
For it is evident, that our Lord sprang out of Judah, of which tribe Moses spake nothing concerning the priesthood. And it is still far more evident, because another priest is raised up, after the likeness of Melchidek, Who was made not after the law of a carnal commandment, but after the power of an endless life. For it is testified, Thou art a priest for ever, after the order of Melchisedek.