'Order of Melchizedek' in the Bible

As he also says in another place, "You are a priest forever according to the order of Melchizedek."

having been designated by God to be a high priest according to the order of Melchizedek.

where Jesus, our forerunner, has gone on our behalf, having become a high priest forever according to the order of Melchizedek.

Now if perfection could have been attained through the Levitical priesthood for on this basis the people received the Law what further need would there be to speak of appointing another kind of priest according to the order of Melchizedek, not one according to the order of Aaron?

For it is declared about him, "You are a priest forever according to the order of Melchizedek."