Jamieson, Fausset and Brown on Ezekiel 37:7

7. noise--of the bones when coming in mutual collision. Perhaps referring to the decree of Cyrus, or the noise of the Jews' exultation at their deliverance and return.

bones came together--literally, "ye bones came together"; as in Jr 49:11 (Hebrew), "ye widows of thine shall trust in Me." The second person puts the scene vividly before one's eyes, for the whole resurrection scene is a prophecy in action to render more palpably to the people the prophecy in word (Eze 37:21).