Here Saul represents himself accompanied by his army. Alternate translation: "Saul and his army took Agag" or "Saul and his army captured Agag" (See: [[rc://en/ta/man/translate/figs-synecdoche]])
The "edge of the sword" represents the swords and other weapons that soldiers used in battle. Here Saul represents himself accompanied by his army. Alternate translation: "they completely destroyed all of the people with their swords" or "they killed all of the people with their swords" (See: [[rc://en/ta/man/translate/figs-synecdoche]])