Hebrews 7:20

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

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

And it was not without an oath. For those who formerly became priests were made such without an oath,

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

And to the extent that it was not without an oath

And it was not without an oath! Others became priests without any oath,

And inasmuch as He was not made priest without an oath

This new system was established with a solemn oath. Aaron’s descendants became priests without such an oath,