2 Samuel (Author Compiled by Isaiah from records of Samuel, David, Nathan, and Gad.)
21:1And there was a famine in the days of David three years, year after year; and David inquired of Jehovah. And Jehovah said, It is for Saul, and for his house of blood, because he slew the Gibeonites.
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.