10. Fear none, &c.--the oldest manuscripts read, "Fear not those things," &c. "The Captain of our salvation never keeps back what those who faithfully witness for Him may have to bear for His name's sake; never entices recruits by the promise they shall find all things easy and pleasant there" [TRENCH].
      devil--"the accuser." He acted, through Jewish accusers against Christ and His people. The conflict of the latter was not with mere flesh and blood, but with the rulers of the darkness of this world.
      tried--with temptation by "the devil." The same event is often both a temptation from the devil, and a trial from God--God sifting and winnowing the man to separate his chaff from his wheat, the devil sifting him in the hope that nothing but chaff will be found in him [TRENCH].
      ten days--not the ten persecutions from Nero to Diocletian. LYRA explains ten years on the year-day principle. The shortness of the duration of the persecution is evidently made the ground of consolation. The time of trial shall be short, the duration of your joy shall be for ever. Compare the use of "ten days" for a short time, Ge 24:55; Nu 11:19. Ten is the number of the world powers hostile to the Church; compare the ten horns of the beast, Re 13:1.
      unto death--so as even to endure death for My sake.
      crown of life-- Jas 1:12; 2Ti 4:8, "crown of righteousness"; 1Pe 5:4, "crown of glory." The crown is the garland, the mark of a conqueror, or of one rejoicing, or at a feast; but diadem is the mark of a KING.

JFB.