Then David left Asaph and his brothers there before the ark of the covenant of the Lord to minister before the ark regularly according to the daily ritual;
There was also a register by ancestral houses of males three years of age and over, for all priests who were eligible to enter the house of the Lord according to the daily schedule to fulfill their service in the order of their divisions.
You shall also keep the feast of the grain harvest with the first fruits of the crop that you sow in the field; and finally, the feast of Ingathering at the end of the year, when you collect your produce from the fields.
These are the offerings you will make to the Lord on your festivals, besides your votive or voluntary offerings of burnt offerings, grain offerings, libations, and communion offerings.