2 Samuel 21:6-9

6So let seven of Saul’s sons be handed over to us, and we will execute them before the Lord at Gibeon, on the mountain of the Lord.” “All right,” the king said, “I will do it.”

7The king spared Jonathan’s son Mephibosheth, who was Saul’s grandson, because of the oath David and Jonathan had sworn before the Lord.

8But he gave them Saul’s two sons Armoni and Mephibosheth, whose mother was Rizpah daughter of Aiah. He also gave them the five sons of Saul’s daughter Merab, the wife of Adriel son of Barzillai from Meholah.

9The men of Gibeon executed them on the mountain before the Lord. So all seven of them died together at the beginning of the barley harvest.