1 Samuel 31:3-6

3The battle pressed hard against Saul, and the archers found him, and he was badly wounded by the archers.

4Then Saul said to his armor-bearer, "Draw your sword, and thrust me through with it, lest these uncircumcised come and thrust me through, and mistreat me." But his armor-bearer would not, for he feared greatly. Therefore Saul took his own sword and fell upon it.

5And when his armor-bearer saw that Saul was dead, he also fell upon his sword and died with him.

6Thus Saul died, and his three sons, and his armor-bearer, and all his men, on the same day together.