'Priest Forever' in the Bible

And He says in another place [Psa. 110:4], "You are a priest forever according to the order of Melchizedek." [Note: This is the first mention of this mysterious Old Testament priest who, throughout this book, is represented as a type of Christ].

where Jesus, our forerunner, [already] entered on our behalf, having become a Head Priest forever according to the order of Melchizedek.

For it is declared [about Jesus in the Scriptures, Psa. 110:4], "You are a priest forever according to the order of Melchizedek."

(for [Levitical] priests were appointed without [God] taking [such] an oath, but Christ was appointed with an oath by God when He said to Him [Psa. 110:4], "The Lord made a vow and will not change His mind [when He said], 'You are a priest forever')."