2 Samuel 21:2

So the king summoned the Gibeonites and spoke to them. (Now the Gibeonites were not of Bnei-Yisrael but a remnant of the Amorites; however, Bnei-Yisrael had sworn a covenant with them. Yet Saul had tried to eradicate them in his zeal for Bnei-Yisrael and Judah.)