2 Samuel 21:8-13

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. He delivered them into the hands of the Gibeonites; and they hanged them on the mountain before Yahweh, and all seven of them fell together. They were put to death in the days of harvest, in the first days, at the beginning of barley harvest. 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; and he brought up from there the bones of Saul and the bones of Jonathan his son. They also gathered the bones of those who were hanged.