isaiah 8:9 Associate yourselves, O ye people, and ye shall be broken in pieces; and give ear, all ye of far countries: gird yourselves, and ye shall be broken in pieces; gird yourselves, and ye shall be broken in pieces. - Free Bible Online

      9. Associate yourselves--rather, "Raise tumults," or, Rage, that is, Do your worst [MAURER], referring perhaps to the attack of Rezin and Pekah on Jerusalem.
      and . . . be broken in pieces--rather, "yet ye shall be thrown into consternation." Imperative in the Hebrew, according to the idiom whereby the second of two imperatives implies the future, namely, the consequence of the action contained in the first (so Isa 6:9). The name "Immanuel" in Isa 8:8 (compare Isa 8:10) suggests the thought of the ultimate safety of Immanuel's land, both from its present two invaders, and even from the Assyrians, notwithstanding the grievous flood, wherewith the previous verses foretell they shall deluge it. The succession of the house of David cannot be set aside in Judah, for ImmanuelMessiah is to be born in it as heir of David, of whom Isaiah's son is but a type (Isa 9:4, 6).
      give ear . . . far countries--witness the discomfiture of Judah's enemies. The prophecy probably looks on also to the final conspiracy of Antichrist and his supporters against the Heir of David's throne in the latter days and their utter overthrow [HORSLEY].
      gird yourselves . . . gird yourselves--The repetition expresses vehemently the certainty of their being thrown into consternation (not as English Version, "broken in pieces").

JFB.