1 Chronicles 25:7

WEB

The number of them, with their brothers who were instructed in singing to the Lord, even all who were skillful, was two hundred eighty-eight.

KJV

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.

Commentary

So the number of them, with their brethren,.... Who each of them had twelve with them, as after reckoned: that were instructed in the songs of the Lord; taught how to sing them: even all that were cunning; expert and well skilled in the science of singing: was two hundred and eighty eight; for there being twenty four classes answerable to those of the priests, and twelve in each class, twelve times twenty four makes two hundred and eighty eight.