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.

Bible References

The orderings

1 Chronicles 9:25
And their brethren that were in the country came in their weeks as their course came about with them.
2 Chronicles 23:4
This it is therefore that ye shall do. The third part of you priests and Levites which come in the Sabbath day, shall keep the doors;
1 Corinthians 14:40
And let all things be done honestly and in order.

Under aaron

1 Chronicles 24:1
The division of the sons of Aaron: Nadab, Abihu, Eleazar and Ithamar.
Hebrews 7:11
If now therefore perfection came by the priesthood of the Levites - for under that priesthood the people received the law - what needed it furthermore that another priest should rise, after the order of Melchizedek, and not after the order of Aaron?