8-10Or look at it this way: We pay our tithes to priests who die, but Abraham paid tithes to a priest who, the Scripture says, "lives." Ultimately you could even say that since Levi descended from Abraham, who paid tithes to Melchizedek, when we pay tithes to the priestly tribe of Levi they end up with Melchizedek.
A Permanent Priesthood
11-14If the priesthood of Levi and Aaron, which provided the framework for the giving of the law, could really make people perfect, there wouldn't have been need for a new priesthood like that of Melchizedek. But since it didn't get the job done, there was a change of priesthood, which brought with it a radical new kind of law. There is no way of understanding this in terms of the old Levitical priesthood, which is why there is nothing in Jesus' family tree connecting him with that priestly line.