1 Chronicles 14:15

And it shall be, when thou shalt hear the sound of their tumult in the tops of the pear trees, then thou shalt go into the battle: for God has gone out before thee to smite the army of the Philistines.

And it shall be, when thou shalt hear a sound of going in the tops of the mulberry trees, that then thou shalt go out to battle: for God is gone forth before thee to smite the host of the Philistines.

When you hear the sound of marching in the tops of the mulberry trees, then go out to battle; for God has gone out before you to strike the army of the Philistines.”