Christ glorified not himself to be made a high priest
Priest Forever After the Order of Melchizedek
Psalm 110:4 The Lord hath sworn, and will not repent, Thou art a priest for ever after the order of Melchizedek.
Hebrews 5:5 (KJV) So also Christ glorified not himself to be made an high priest; but he that said unto him, Thou art my Son, to day have I begotten thee.
6 As he saith also in another place, Thou art a priest ever after the order of Melchisedec.