Jamieson, Fausset and Brown on 1 Chronicles 14:15

15. for God is gone forth before thee--"a sound of going in the tops of the mulberry trees," that is, the rustling of the leaves by a strong breeze suddenly rising, was the sign by which David was divinely apprised of the precise moment for the attack. The impetuosity of his onset was like the gush of a pent-up torrent, which sweeps away all in its course; and in allusion to this incident the place got its name.