2 Chronicles 26:13

And under their hand was an army, three hundred thousand and
seven thousand and five hundred
Which was larger than that in his father's time by 7500, ( 2 Chronicles 25:5 ) besides officers:

that made war with mighty power, to help the king against the enemy;
they were ready to fight, and fight valiantly, whenever the king had any occasion for them, or the land was invaded.