1 Chronicles 14:13-16

13And the Philistines yet again made a raid in the valley. 14And David inquired again of God; and God said unto him, Thou shalt not go up after them: turn away from them, and come upon them over against the mulberry-trees. 15And it shall be, when thou hearest the sound of marching in the tops of the mulberry-trees, that then thou shalt go out to battle; for God is gone out before thee to smite the host of the Philistines. 16And David did as God commanded him: and they smote the host of the Philistines from Gibeon even to Gezer.