1 Samuel 14:13

14:13 Jonathan crawled up on his hands and feet, with his armor bearer following behind him. Jonathan struck down the Philistines, while his armor bearer came along behind him and killed them.

1 Samuel 16:21

16:21 David came to Saul and stood before him. Saul liked him a great deal, and he became his armor bearer.

1 Samuel 31:5

31:5 When his armor bearer saw that Saul was dead, he also fell on his own sword and died with him.