2 Samuel 21:6, 9

let seven of his sons be given to us, so that we may hang them before the LORD at Gibeah of Saul, the chosen of the LORD.” And the king said, “I will give them.”

and he gave them into the hands of the Gibeonites, and they hanged them on the mountain before the LORD, and the seven of them perished together. They were put to death in the first days of harvest, at the beginning of barley harvest.