1 Chronicles 27:1, 23-24

Here is the listing of the sons of Israel by family heads, commanders and captains, and other officers who served the king in everything military. Army divisions were on duty a month at a time for the twelve months of the year. Each division comprised 24,000 men.

David didn’t keep a count of men under the age of twenty, because GOD had promised to give Israel a population as numerous as the stars in the sky. Joab son of Zeruiah started out counting the men, but he never finished. God’s anger broke out on Israel because of the counting. As it turned out, the numbers were never entered into the court records of King David.