'Directions' in the Bible

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.

And when the builders laid the foundation of the temple of Jehovah, they set the priests in their apparel, with trumpets, and the Levites the sons of Asaph, with cymbals, to praise Jehovah according to the directions of David king of Israel.

Now I praise you, that in all things ye are mindful of me; and that as I have directed you, ye keep the directions.