Hebrews 7:20

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

Inasmuch as he was not made priest without the taking of an oath

And inasmuch as `it is' not without the taking of an oath

And inasmuch as `it is' not apart from oath, (for those indeed apart from oath are become priests,

And none of this happened without an oath. For others became priests without an oath,