Hebrews 7:11-14

If, then, there had been a perfect expiation by means of the Levitical priesthood, (for with reference to it, the people received the law,) what further need was there that another priest should be raised up after the order of Melchisedec, and not be called after the order of Aaron?

Treasury of Scripture Knowledge

Summary

But Aaron and his sons offered upon the altar of the burnt offering, and on the altar of incense, and were appointed for all the work of the place most holy, and to make an atonement for Israel, according to all that Moses the servant of God had commanded.

Aaron

Bible References

Aaron

Hebrews 7:11
If, then, there had been a perfect expiation by means of the Levitical priesthood, (for with reference to it, the people received the law,) what further need was there that another priest should be raised up after the order of Melchisedec, and not be called after the order of Aaron?