1 Corinthians 14:40

But all things should be done decently and in an orderly way.

Hebrews 7:11

Now if perfection could have been through the Levitical priesthood (for on the basis of it the people received the Law), what further need was there for another priest to arise according to the order of Melchizedek, and not one designated according to the order of Aaron?

Treasury of Scripture Knowledge

Summary

These were the orderings of them in their service to come into the house of the LORD, according to their manner, under Aaron their father, as the LORD God of Israel had commanded him.

The orderings

Under aaron

Bible References

The orderings

1 Corinthians 14:40
But all things should be done decently and in an orderly way.

Under aaron

Hebrews 7:11
Now if perfection could have been through the Levitical priesthood (for on the basis of it the people received the Law), what further need was there for another priest to arise according to the order of Melchizedek, and not one designated according to the order of Aaron?