'Armor bearer' in the Bible

Then Saul said to 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 very afraid. Therefore Saul took his sword, and fell upon i

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 armor bearer of Joab the son of Zeruiah,