isaiah 10:27 And it shall come to pass in that day, that his burden shall be taken away from off thy shoulder, and his yoke from off thy neck, and the yoke shall be destroyed because of the anointing. - Free Bible Online

      27. his burden--the Assyrians' oppression (Isa 9:3). Judah was still tributary to Assyria; Hezekiah had not yet revolted, as he did in the beginning of Sennacherib's reign.
      because of-- (Ho 10:15).
      the anointing--namely, "Messiah" (Da 9:24). Just as in Isa 9:4-6, the "breaking of the yoke of" the enemies' "burden and staff" is attributed to Messiah, "For unto us a child is born," &c., so it is here. MAURER not so well translates, "Because of the fatness"; an image of the Assyrians fierce and wanton pride drawn from a well-fed bull tossing off the yoke (De 32:15). So Isa 10:16 above, and Isa 5:17, "fat ones."

JFB.