John Gills Exposition of the Bible Commentary - 1 Chronicles 16:40
To offer burnt offerings unto the Lord ,.... Which was the work of the priests only to do: upon the altar of burnt offering continually morning and evening ; the lambs of the daily sacrifice, which were a burnt offering, and only to be offered on the brasen altar at the tabernacle: and to do according to all that is written in the law of the Lord, which he commanded Israel ; with regard to them, and all other sacrifices, see Exodus 29:38 . read more
Matthew Henry's Complete Commentary - 1 Chronicles 16:37-43
The worship of God is not only to be the work of a solemn day now and then, brought in to grace a triumph; but it ought to be the work of every day. David therefore settles it here for a constancy, puts it into a method, which he obliged those that officiated to observe in their respective posts. In the tabernacle of Moses, and afterwards in the temple of Solomon, the ark and the altar were together; but, ever since Eli's time, they had been separated, and still continued so till the temple... read more