2 Samuel 8:2

8:2 He defeated the Moabites. He made them lie on the ground and then used a rope to measure them off. He put two-thirds of them to death and spared the other third. The Moabites became David’s subjects and brought tribute.

2 Samuel 21:2

21:2 So the king summoned the Gibeonites and spoke with them. (Now the Gibeonites were not descendants of Israel; they were a remnant of the Amorites. The Israelites had made a promise to them, but Saul tried to kill them because of his zeal for the people of Israel and Judah.)

2 Samuel 21:9

21:9 He turned them over to the Gibeonites, and they executed them on a hill before the Lord. The seven of them died together; they were put to death during harvest time – during the first days of the beginning of the barley harvest.