Hebrews 5:4-6

21st Century King James Version

⁴ And no man taketh this honor unto himself, except he that is called by God, as was Aaron.

⁵ So also Christ glorified not Himself to be made a high priest, but He that said unto Him, “Thou art My Son; today have I begotten Thee.”

⁶ And He saith also in another place, “Thou art a priest for ever after the order of Melchizedek.”