Hebrews 7:11-14

If then perfection were by the Levitical priesthood, (for under it the people received the law) what farther need was there that another priest should rise, after the order of Melchisedek, 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 perfection were by the Levitical priesthood, (for under it the people received the law) what farther need was there that another priest should rise, after the order of Melchisedek, and not be called after the order of Aaron?