Then there was a famine in the days of David three years, year after year; and David enquired of the LORD. And the LORD answered, [It is] for Saul, and for [his] bloody house, because he slew the Gibeonites.
Jewish Publication Society of America Version (JPS1917) - 2 Samuel 21:1 >And there was a famine in the days of David three years, year after year; and David sought the face of the LORD. And the LORD said: 'It is for Saul, and for his bloody house, because he put to death the Gibeonites.'