Ezra
1 Chronicles 27:9ESV·traditional attribution

Sixth, for the sixth month, was Ira, the son of Ikkesh the Tekoite; in his division were 24,000.

Matthew Henry Presbyterian @wholebiblehenry

We have here an account of the regulation of the militia of the kingdom. David was himself a man of war, and had done great things with the sword; he had brought into the field great armies. Now here we are told how he marshalled them when God had given him rest from all his enemies.

Commenting on 1 Chronicles 27:1-15