2 Samuel 21:9

let seven men of his sons be delivered to us, and we will hang them up to the LORD in Gibeah of Saul, the chosen of the LORD.”

The king said, “I will give them.”

But the king spared Mephibosheth the son of Jonathan the son of Saul, because of the LORD’s oath that was between them, between David and Jonathan the son of Saul.

But the king took the two sons of Rizpah the daughter of Aiah, whom she bore to Saul, Armoni and Mephibosheth; and the five sons of Merab the daughter of Saul, whom she bore to Adriel the son of Barzillai the Meholathite.

Rizpah the daughter of Aiah took sackcloth and spread it for herself on the rock, from the beginning of harvest until water poured on them from the sky. She allowed neither the birds of the sky to rest on them by day, nor the animals of the field by night.

David was told what Rizpah the daughter of Aiah, the concubine of Saul, had done.

So David went and took the bones of Saul and the bones of Jonathan his son from the men of Jabesh Gilead, who had stolen them from the street of Beth Shan, where the Philistines had hanged them in the day that the Philistines killed Saul in Gilboa;