'Priest Forever' in the Bible

as he says also in another place, Thou art a priest forever, after the order of Melchisedec.

whither a forerunner for us has gone, even Jesus, who is made a high priest forever after the order of Melchisedec.

without father, without mother, without genealogy, having neither beginning of days, nor end of life, but being made to resemble the Son of God, remains a priest forever.

Thou art a priest forever after the order of Melchisedec.

(for those priests were made such without an oath, but this one with an oath, by him that said to him, The Lord swore, and will not repent, Thou art a priest forever after the order of Melchisedec;)