1 Chronicles 12:36

And of Asher, such as went forth to battle, expert in war, forty thousand.

The verse belongs to the fuller account in 1 Chronicles 12:23-40 that numbers the contingents from Israel's tribes. Those contingents assembled to David at Hebron when he rose to rule over all Israel. They are reckoned as David's mighty men and his loyal men. Within that gathering Asher's share was forty thousand men who went forth to battle, described as expert, skilled, and equipped in war.

Together with the other tribes listed in the passage, the warriors who came to David at Hebron totaled 339,600.