'Trained' in the Bible

And when Abram heard that his brother was taken captive, he led forth his trained men, born in his house, three hundred and eighteen, and pursued as far as Dan.

And of the Gadites there separated themselves unto David to the stronghold in the wilderness, mighty men of valor, men trained for war, that could handle shield and spear; whose faces were like the faces of lions, and they were as swift as the roes upon the mountains;