These two phrases share similar meanings and emphasize that no one, not even the strongest and fastest, can escape. The nominal adjective "the swift" can be stated as an adjective. Alternate translation: "even the swiftest soldier cannot escape" (See: [[rc://en/ta/man/translate/figs-doublet]] and [[rc://en/ta/man/translate/figs-nominaladj]])
Both statements mean the same thing. Being and dying in battle is spoken of as if the soldiers stumble and fall. Alternate translation: "The Egyptian soldiers suffer defeat and die in the north by the Euphrates River" (See: [[rc://en/ta/man/translate/figs-parallelism]] and [[rc://en/ta/man/translate/figs-metaphor]])