1 Samuel 13:22

There was neither sword, etc. Armed only with clubs and their farming implements, it is no wonder that the people were afraid of fighting the Philistines, who, as we gather from the description of Goliath's armour, were clad in mail; nor is it surprising that they despised and neglected Saul and his few men, whom probably they regarded as an unarmed mob of rustics. The Ammonites probably were far less efficiently armed than the Philistines, who, as commanding the sea coast, could import weapons from Greece.