²⁶ And on the day of the first-fruits, when ye present a new oblation to Jehovah, after your weeks, ye shall have a holy convocation: no manner of servile work shall ye do.

¹⁸ And Jehoiada appointed the offices of the house of Jehovah under the hand of the priests, the Levites, whom David had set by classes over the house of Jehovah to offer up Jehovah's burnt-offerings, as it is written in the law of Moses, -- with rejoicing and with singing according to the directions of David.