I Chronicles 27:1, 23-24

And the children of Israel, according to their number, the heads of fathers’ houses, the captains of thousands and hundreds and their officers, served the king in every matter of the military divisions. These divisions came in and went out month by month throughout all the months of the year, each division having twenty-four thousand.

But David did not take the number of those twenty years old and under, because the LORD had said He would multiply Israel like the stars of the heavens. Joab the son of Zeruiah began a census, but he did not finish, for wrath came upon Israel because of this census; nor was the number recorded in the account of the chronicles of King David.