1 Chronicles 25:7
Together with their relatives, who were all trained and skillful in the songs of the LORD, they numbered 288.
Berean Standard Bible
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 number of them, with their brothers who were instructed in singing to the LORD, even all who were skillful, was two hundred eighty-eight.