And Moses stretched out his hand over the sea; and the LORD caused the sea to go back by a strong east wind all that night, and made the sea dry land, and the waters were divided.
All Commentaries on Exodus 14:21 Go To Exodus 14
Paulinus of Nola
AD 431
We find that arms have always needed faith, but faith has never needed arms. The rod of faith parted the sea which submerged the army bereft of faith together with its wicked leader.