1 Samuel (Author Compiled by Isaiah from records of Samuel, David, Nathan, and Gad.)
30:8And David inquired of Jehovah, saying, Shall I pursue after this troop? shall I overtake them? And he said to him, Pursue; for thou shalt assuredly overtake them and shalt certainly recover.
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.