The Lord shall fight for you - Ye shall have no part in the honor of the day; God alone shall bring you off, and defeat your foes.
Ye shall hold your peace - Your unbelieving fears and clamours shall be confounded, and ye shall see that by might none shall be able to prevail against the Lord, and that the feeblest shall take the prey when the power of Jehovah is exerted.

The LORD shall fight for you, and ye shall (h) hold your peace.
(h) Only put your trust in God without grudging or doubting.

The Lord shall fight for you,.... By commanding the wind of the heavens, and the waves of the sea, and employing them against their enemies, and on their behalf; they being unarmed, and so not in a condition to fight for themselves, as well as they had no heart or spirit for it:
and ye shall hold your peace; be still, and quiet, and easy in your minds, and forbear saying or doing anything; "be silent"; and neither express the fear and distress of their minds, by any mournful sounds, nor their joy of faith by shouts and huzzas; as they could not draw a sword, they were not so much as to blow a trumpet, and break a pitcher, and cry the sword of the Lord, and of Israel as they after did on another occasion, at least their posterity.

"Jehovah will fight for you (לכם, dat comm.), but you will be silent," i.e., keep quiet, and not complain any more (cf. Genesis 34:5).