37 So he made Asaph and his brothers keep their places there before the ark of the agreement of the Lord, to do whatever had to be done before the ark at all times day by day: 38 And Obed-edom, the son of Jeduthun, and Hosah, with their brothers, sixty-eight of them, to be door-keepers: 39 And Zadok the priest, with his brothers the priests, before the House of the Lord in the high place at Gibeon; 40 To give burned offerings to the Lord on the altar of burned offerings morning and evening, every day, as it is ordered in the law of the Lord which he gave to Israel; 41 And with them Heman and Jeduthun, and the rest who were marked out by name to give praise to the Lord, for his mercy is unchanging for ever; 42 And Heman and Jeduthun had horns and brass instruments sounding loudly, and instruments of music for the songs of God; and the sons of Jeduthun were to be at the door. 43 And all the people went away, every man to his house; and David went back to give a blessing to his family.
Matthew Henry's Commentary on 1 Chronicles 16:37-43
Commentary on 1 Chronicles 16:37-43
(Read 1 Chronicles 16:37-43)
The worship of God ought to be the work of every day. David put it into order. At Jerusalem, where the ark was, Asaph and his brethren were to minister before the ark continually, with songs of praise. No sacrifices were offered there, nor incense burnt, because the altars were not there; but David's prayers were directed as incense, and the lifting up of his hands as the evening sacrifice. So early did spiritual worship take place of ceremonial. Yet the ceremonial worship, being of Divine institution, must by no means be omitted; therefore at Gibeon, at the altars, the priests attended; for their work was to sacrifice and burn incense; and that they did continually, morning and evening, according to the law of Moses. As the ceremonies were types of the mediation of Christ, the observance of them was of great consequence. The attendance of his appointed ministers is right in itself, and encourages the people.