1 Samuel 31:2-4

2And the Philistines also overtook Saul and his sons, and the Philistines 1killed 2Jonathan, Abinadab, and Malchi-shua, the sons of Saul.

33The battle went heavily against Saul, and the archers found him; and he was gravely wounded by the archers.

44Then Saul said to his armor bearer, “Draw your sword and pierce me through with it, otherwise 5these uncircumcised Philistines will come and pierce me through, and abuse me.” But his armor bearer was unwilling, because he was very fearful. 6So Saul took 7his sword and fell on it.