King James Version (KJV)

Hebrews 7:17

“For he testifieth, Thou [art] a priest for ever after the order of Melchisedec.”

Verse in context — Hebrews 7

And it is yet far more evident: for that after the similitude of Melchisedec there ariseth another priest,

Who is made, not after the law of a carnal commandment, but after the power of an endless life.

For he testifieth, Thou [art] a priest for ever after the order of Melchisedec.

For there is verily a disannulling of the commandment going before for the weakness and unprofitableness thereof.

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

Jesus as the ultimate High Priest and fulfillment of the Old Covenant.