1 Samuel 31:1-4

Now the Philistines fought against Israel, and the men of Israel fled before them and fell slain on Mount Gilboa. The Philistines overtook Saul and his sons; and they killed Jonathan and Abinadab and Malchi-shua, Saul’s sons. The battle went heavily against Saul, and the archers hit him; and he was severely wounded by the archers. Saul 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.