Hebrews 7:20 in the King James Version
And inasmuch as not without an oath he was made priest:
Context
19 (for the law made nothing perfect), and a bringing in of a better hope, through which we draw near to God.
20 Inasmuch as he was not made priest without the taking of an oath
21 (for they indeed have been made priests without an oath), but he with an oath by him that says of him, “The Lord swore and will not change his mind, ‘You are a priest forever, according to the order of Melchizedek.’”