1 Samuel 31:4-5

4He said to the young man who carried his armour, ‘Kill me now with your sword. I do not want these foreign men to be cruel to me as they kill me.’ But the young man would not agree to kill Saul because he was too afraid. So Saul took his own sword and he threw himself onto it so that he died.

5The young man saw that Saul was dead. So he threw himself onto his own sword and he also died.