Armorbearer

Concise Bible Dictionary:

An attendant on a warrior, filling a place of trust and honor. When Saul loved David he made him his armorbearer (1 Sam. 16:2121And David came to Saul, and stood before him: and he loved him greatly; and he became his armorbearer. (1 Samuel 16:21)). On Saul being wounded, his armorbearer refused to kill him; but when Saul was dead the armorbearer fell upon his sword and died also (1 Sam. 31:55And when his armorbearer saw that Saul was dead, he fell likewise upon his sword, and died with him. (1 Samuel 31:5)).