1 Chronicles 24:19
These were appointed to enter the Temple of the LORD according to their protocols established by their ancestor Aaron, as commanded by the LORD God of Israel.
1 Chronicles 9:25
Their relatives who lived in their villages were required to visit every seven days to be with them in turn,
1 Chronicles 24:1
With respect to the descendants of Aaron, classes of service were organized for Nadab, Abihu, Eleazar, and Ithamar, the descendants of Aaron.
2 Chronicles 23:4
"Look! The king's son is going to rule, just as the LORD promised David's descendants. So here's what you'll need to do: One third of you priests and descendants of Levi who are on duty during the Sabbath will serve as guards at the temple gates.
2 Chronicles 23:8
What Jehoiada the priest ordered is precisely what the descendants of Levi and all of Judah did. Each of them took the men who were on duty on the Sabbath as well as those who were off duty. Jehoiada the priest did not release the divisions from service,
1 Corinthians 14:40
But everything must be done in a proper and orderly way.
Hebrews 7:11
Now if perfection could have been attained through the Levitical priesthood for on this basis the people received the Law what further need would there be to speak of appointing another kind of priest according to the order of Melchizedek, not one according to the order of Aaron?