1 Chronicles 25:7
So the number of them, with their brethren that were instructed in the songs of the LORD, even all that were cunning, was two hundred fourscore and eight. So the number of them, with their brethren that were instructed in the songs of the LORD, even all that were cunning, was two hundred fourscore and eight.
The musical service in David's time was carefully organized. The 288 counted were trained in the songs of the Lord and were skilled, cunning workers in their craft. They were arranged in courses under the leadership of twelve men. This order stands as an example that duties should be assigned to those whose training and abilities fit them for the work.