Now it came to pass upon a day, that Jonathan the son of Saul said unto the young man that bare his armour, Come, and let us go over to the Philistines' garrison, that is on the other side. But he told not his father. Come, and let us go over - This action of Jonathan was totally contrary to the laws of war; no military operation should be undertaken without the knowledge and command of the general. But it is likely that he was led to this by a Divine influence.
The armor-bearer is the origin of what we call esquire, from escu, old French, a shield; armiger is the Latin, from arma, weapons, and gero, I bear. In the times of chivalry, the armiger, or esquire, was the servant of the knight who went after him, and carried his lance, shield, etc. It is now (strange to tell!) a title of honor.