'Trained' in the Bible
The sons of Reuben and Gad and half the tribe of Manasseh had 44,760 warriors who could serve in the army—men who carried shield and sword, drew the bow, and were trained for war.
Some Gadites defected to David at his stronghold in the desert. They were fighting men, trained for battle, expert with shield and spear. Their faces were like the faces of lions, and they were as swift as gazelles on the mountains.
From Zebulun: 50,000 who could serve in the army, trained for battle with all kinds of weapons of war, with one purpose to help David.
From the Danites: 28,600 trained for battle.
From Asher: 40,000 who could serve in the army, trained for battle.
They numbered 288 together with their relatives who were all trained and skillful in music for the Lord.