Rashi on Exodus 14:4/רש"י על שמות י״ד:ד׳

1ואכבדה בפרעה AND I WILL BE HONOURED THROUGH PHARAOH — When the Holy One, blessed be He, takes vengeance on the wicked His name is magnified and honoured. Thus, too, it states, (Ezekiel 38:22, 23) “And I will plead against him [with pestilence and with blood etc.]”, and afterwards, “Thus I shall be magnified and sanctified etc.” And it states, (Psalms 76:3) “There He broke the fiery shafts of the bow”, and afterwards (after He has done this) (v. 2) “In Judah is God known. “Further it states, (Psalms 9:17) “The Lord is known because He executeth judgment” (Mekhilta).

2בפרעה ובכל חילו THROUGH PHARAOH AND THROUGH ALL HIS FORCES — He began the wrongdoing and with him began the punishment (Mekhilta; cf. Rashi on Exodus 7:28).

3ויעשו כן AND THEY DID SO — This is stated in order to tell their praise — that they hearkened to Moses and did not say, How can we move nearer to our enemies; we ought rather to flee,” but they said, ‘‘It is ours only to carry out the bidding of the son of Amram” (cf. Mekhilta).