'Armor bearer' in the Bible

Saul told his armor bearer, "Draw your sword and stab me with it. Otherwise these uncircumcised people will come and torture me." But his armor bearer refused to do it, because he was very afraid. So Saul took the sword and fell on it.

When his armor bearer saw that Saul was dead, he also fell on his sword and died.

Zelek the Ammonite, Naharai the Beerothite, the armor-bearer of Joab son of Zeruiah,