Hebrews 7:11-14

11So if perfection had in fact been possible through the Levitical priesthood – for on that basis the people received the law – what further need would there have been for another priest to arise, said to be in the order of Melchizedek and not in Aaron’s order?

12For when the priesthood changes, a change in the law must come as well.

13Yet the one these things are spoken about belongs to a different tribe, and no one from that tribe has ever officiated at the altar.

14For it is clear that our Lord is descended from Judah, yet Moses said nothing about priests in connection with that tribe.