1 Chronicles 12:8, 37-38

From the Gadites there came over to David in the stronghold in the wilderness, mighty men of valor, men trained for war, who could handle shield and spear, and whose faces were like the faces of lions, and they were as swift as the gazelles on the mountains.

From the other side of the Jordan, of the Reubenites and the Gadites and of the half-tribe of Manasseh, there were 120,000 with all kinds of weapons of war for the battle. All these, being men of war who could draw up in battle formation, came to Hebron with a perfect heart to make David king over all Israel; and all the rest also of Israel were of one mind to make David king.