Hebrews 7:20 KJV
And inasmuch as not without an oath he was made priest:
Hebrews 7:18–22 KJV Chapter Context
18
For there is verily a disannulling of the commandment going before for the weakness and unprofitableness thereof.
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:)
22
By so much was Jesus made a surety of a better testament.