1 Chronicles 10:8-13

8So it happened the next day, when the Philistines came to strip the slain, that they found Saul and his sons fallen on Mount Gilboa.

9And they stripped him and took his head and his armor, and sent word throughout the land of the Philistines to proclaim the news in the temple of their idols and among the people.

10Then they put his armor in the temple of their gods, and fastened his head in the temple of Dagon.

11And when all Jabesh Gilead heard all that the Philistines had done to Saul,

12all the valiant men arose and took the body of Saul and the bodies of his sons; and they brought them to Jabesh, and buried their bones under the tamarisk tree at Jabesh, and fasted seven days.

13So Saul died for his unfaithfulness which he had committed against the Lord, because he did not keep the word of the Lord, and also because he consulted a medium for guidance.