Hebrews 7:19-21

King James Version

¹⁹ For the law made nothing perfect, but the bringing in of a better hope did; by the which we draw nigh unto God.

²⁰ And inasmuch as not without an oath he was made priest:

²¹ (For those priests were made without an oath; but this with an oath by him that said unto him, The Lord sware and will not repent, Thou art a priest for ever after the order of Melchisedec:)