Prophecies of Christ: List of Prophecies Jesus Fulfilled
A priest after Melchizedek's order Hebrews 6:20
Heb 6:20 Whither the forerunner is for us entered, even Jesus, made a high priest forever after the order of Melchizedek.

Prophecies and where God spoke in the Old Testament that was fulfilled in Old Testament: List of OT Prophecies

New Testament references to the Old Testament: List of NT references to OT
Heb 5:6-10, Heb 7:17,21
Heb 5:6 As he saith also in another place, Thou art a priest forever after the order of Melchizedek.
Heb 5:7 Who in the days of his flesh, when he had offered up prayers and supplications with strong crying and tears unto him that was able to save him from death, and was heard in that he feared;
Heb 5:8 Though he were a Son, yet learned he obedience by the things which he suffered;
Heb 5:9 And being made perfect, he became the author of eternal salvation unto all them that obey him;
Heb 5:10 Called of God a high priest after the order of Melchizedek.
Heb 7:17 For he testifieth, Thou art a priest forever after the order of Melchizedek.
Heb 7:21 (For those priests were made without an oath; but this with an oath by him that said unto him, The Lord swore and will not repent, Thou art a priest forever after the order of Melchizedek:)