Hebrews 7:19-21

Amplified Bible

¹⁹ (for the Law never made anything perfect); while on the other hand a better hope is introduced through which we now continually draw near to God. ²⁰ And indeed it was not without the taking of an oath [that Christ was made priest] ²¹ (for those Levites who formerly became priests [received their office] without [its being confirmed by the taking of] an oath, but this One [was designated] with an oath through the One who said to Him,