2 Samuel 5:23-24

23So 1David inquired of the Lord, but He said, “You shall not go directly up; circle around behind them and come at them in front of the baka-shrubs.

24And it shall be, when 2you hear the sound of marching in the tops of the baka-shrubs, then you shall 3act promptly, for then 4the Lord will have gone out before you to strike the army of the Philistines.”