1 Chronicles 10:8-10

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.