I was thinking about the sources for some of my statements above. I came across this explanation:
http://ohr.edu/tw/5757/shmos/beshalac.htm
MAGNETIC ATTRACTION"Hashem is a Master of war; Hashem is His Name." (15:3)
Rashi explains that Hashem wages war, not with weapons, but with His Name. How is Rashi enlightening us with this comment? Did we really think that Hashem has an armament factory?
When Moshe killed the Egyptian in Parshas Shemos, our Sages teach us that he 'laid his eyes' on him and the Egyptian was transformed into a pile of bones (Berachos 55a).
Every living thing in this world stays alive only because inside it is a spark of holiness. When Moshe 'laid his eyes' on the Egyptian, the spark of holiness that maintained the existence of that Egyptian was inexorably drawn to Moshe's eyes, and the Egyptian was left as a mere pile of bones.
Something similar happened at the splitting of the sea, but on an infinitely greater scale.
At the sea there was a revelation of G-dliness which drew all the fragments of holiness enmeshed in the bodies of the Egyptians back to the Source of all life.
Thus, the Egyptians were left devoid of the life-force that sustained them.
There is a mystical principle that the left hand corresponds to Din - strict justice - and the right hand corresponds to Rachamim - mercy.
Our Sages teach us that the left hand pushes away, while the right hand brings close. When a person is punished for his wrong-doing, it is referred to as the left hand - strict justice - pushing him away.
However, Egypt was different. Their downfall came not at the hands of the messengers of justice, but totally the reverse. The Egyptians were punished by the right-hand of G-d bringing close all the fragments of holiness that were embedded within them.
Now we can understand what Rashi meant when he said that Hashem doesn't wage war with weapons.
Hashem's ultimate weapon is His Great Name - the Name of Mercy, which represents His Essence. When this is revealed, all life must flock to It like metal to a magnet.
This also is the explanation of the verse "Your Right Hand, Hashem, is exalted in power; Your Right Hand, Hashem, smashes the enemy." The Right Hand draws close all the sparks of holiness.
(Shem MiShmuel)