And their brethren [were] in their courts, to enter in weekly from time to time with these.

Now this [is] the thing which you shall do. Let a third part of you, [even] of the priests and of the Levites, enter in on the Sabbath, even into the gates of the entrances;

And the Levites and all Judah did according to all that the priest Jehoiada commanded them, and they took each his men from the beginning of the Sabbath to the end of the Sabbath, for Jehoiada the priest did not dismiss the courses.

Let all things be done properly and according to order.

And [they numbered] the sons of Aaron in [their] division, Nadab, Abihu, Eleazar, and Ithamar.

Therefore, if perfection were through the Levitical priesthood (for under it the people have received the law), why is there yet a need [for] another priest to rise, according to the order of Melchizedek, and not to be called according to the order of Aaron?