Who rescued the bodies of Saul and his sons from the wall of Beth-shan?

Answer: The men of Jabesh-gilead

The valiant men of Jabesh-gilead traveled all night, retrieved the bodies, buried the bones at Jabesh, and fasted seven days.

“When the people of Jabesh-gilead heard what the Philistines had done to Saul,”— 1 Samuel 31:11 (BSB)