2 Samuel 21:6, 9

So bring seven of his sons to us. Then we will kill them and hang them on stakes in the presence of the LORD at Gibeah, the hometown of Saul, the LORD’s chosen king.” The king said, “I will give them to you.”

David gave these seven sons to the Gibeonites. Then the Gibeonites killed them and hung them on stakes on a hill in the presence of the LORD. All seven sons died together. They were put to death during the first days of the harvest season at the beginning of barley harvest.