This was the ordering of them in their service, to come into the house of Yahweh according to the ordinance [given] to them by Aaron their father, as Yahweh, the God of Israel, had commanded him.
according to their manner; law, right, custom, here prescribed for them: under Aaron their father; that is, him who was high priest for the time being; who bore this name because his successor and representative, under whose inspection, direction, and authority, all the rest of the priests were, and whom they were to obey in all things: