'Armor bearer' in the Bible

Then said Saul unto his armor-bearer, Draw thy sword, and thrust me through therewith, lest these uncircumcised come and abuse me. But his armor-bearer would not; for he was sore afraid. Therefore Saul took his sword, and fell upon it.

And when his armor-bearer saw that Saul was dead, he likewise fell upon his sword, and died.

Zelek the Ammonite, Naharai the Berothite, the armorbearer of Joab the son of Zeruiah,