2nd Samuel 5:21

18 And when the Philistines came, they went in every direction in the valley of Rephaim.

19 And David, desiring directions from the Lord, said, Am I to go up against the Philistines? will you give them up into my hands? And the Lord said, Go up, for I will certainly give up the Philistines into your hands.

20 And David went to Baal-perazim, and overcame them there; and he said, The Lord has let the forces fighting against me be broken before me as a wall is broken by rushing waters. So that place was named Baal-perazim.

21 And the Philistines, when they went in flight, did not take their images with them, and David and his men took them away.

22 And the Philistines came up again, and went in every direction in the valley of Rephaim.

23 And when David went for directions to the Lord, he said, You are not to go up against them in front; but make a circle round them from the back and come on them opposite the spice-trees.

24 Then at the sound of footsteps in the tops of the trees, go forward quickly, for the Lord has gone out before you to overcome the army of the Philistines.