1 Chronicles 23:31

to offer The Levites" duty was to give any help short of actually offering the victim on the altar and sprinkling the blood. See 2 Chronicles 29:21-27; 2 Chronicles 30:16-17; 2 Chronicles 35:10-11.

the set feasts i.e. the three yearly feasts; Exodus 23:14-17.

by number, according to the order commanded unto them R.V, in number according to the ordinance concerning them. The words refer not to the Levites (A.V.), but to the sacrifices (R.V.).