1 Samuel 31:3-6

3The battle went heavily against Saul, and the archers hit him; and he was severely wounded by the archers.

4Saul said to his armor bearer, “Draw your sword and pierce me through with it, otherwise these uncircumcised [Philistines] will come and pierce me through and abuse and mock me.” But his armor bearer would not, because he was terrified [of doing such a thing]. So Saul took his sword and fell on it.

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

6So Saul, his three sons, his armor bearer, and all his men died together on that day.