John Lightfoot on Luke 1:8

[In the order of his course.] "The heads of the courses stood forth, and divided themselves into so many houses of fathers. In one course, perhaps, there were five, six, seven, eight, or nine houses of fathers: of the course wherein there were but five houses of fathers, there were three of them ministered three days, and two four days; if six, then five served five days, and one two days; if seven, then every one attended their day; if eight, then six waited six days, and two one day; if nine, then five waited five days, and four the other two."

Take the whole order of their daily attendance from Gloss in Tamid, cap. 6: "The great altar [or the altar of sacrifice] goes before the lesser [or that of incense]. The lesser altar goes before the pieces of wood [laid on the hearth of the great altar]; the laying on the wood goes before the sweeping the inner altar [or that of the incense]; the sweeping of the inner altar goes before the snuffing of the lamps; the snuffing of the lamps goes before the sprinkling of the blood of the daily sacrifice; the sprinkling of the blood of the daily sacrifice goes before the snuffing of the two other lamps; the snuffing of the two other lamps goes before the incense; the incense goes before the laying on the parts of the sacrifice upon the altar; the laying on the parts goes before the Mincha; the Mincha goes before the meal [or the two loaves] of the chief priest; the two loaves of the chief priest go before the drink offering; the drink offering before the additional sacrifices. So Abba Saul." But a little after; "The wise men say, 'The blood of the sacrifice is sprinkled; then the lamps snuffed; then the incense; then the snuffing of the two other lamps: and this is the tradition according to the wise men.'"