14 He appointed, according to the ordinance of David his father, the divisions of the priests to their service, and the Levites to their offices, to praise, and to minister before the priests, as the duty of every day required; the doorkeepers also by their divisions at every gate: for so had David the man of God commanded.
*Minor differences ignored. Grouped by changes, with first version listed as example.
The man of God - This phrase, so common in Kings (see the introduction to Kings, 4th note), is rare in Chronicles, and is applied only to Moses 1-Chronicles 23:14, David, and one other prophet 2-Chronicles 25:7, 2-Chronicles 25:9.
And he appointed, according to the order of David his father, the courses of the priests to their service,.... The twenty four courses which served weekly in their turns, 1-Chronicles 24:1.
and the Levites to their charges, to praise and minister before the priests, as duty of every day required; who also had their courses by lot, to sing the praises of God, when the priests sacrificed, or blew the trumpets, 1-Chronicles 25:1,
the porters also by their courses at every gate; from hence Dr. Lightfoot concludes that these were divided into twenty four classes, as the priests and Levite singers were:
for so had David the man of God commanded, 1-Chronicles 26:1, who in all these affairs acted as a prophet, under the inspiration and direction of the Holy Spirit of God.
He ordered the temple service, also, entirely according to the arrangement introduced by David as to the service of the priests and Levites. He appointed, according to the ordinance of David his father, i.e., according to the ordinance established by David, the classes of the priests (see on 1 Chron 24) to that service, and the Levites to their stations (משׁמרות as in 2-Chronicles 7:6), to praise (cf. 1 Chron 25), and to serve before the priests (1-Chronicles 23:28.), according to that which was appointed for every day, and the doorkeepers according to their courses, etc. (see 1 Chron 27:1-19). With the last words cf. Nehemiah 12:24.
Man of God - A prophet inspired by God in these matters, whose commands therefore are the commands of God.
*More commentary available at chapter level.