isaiah 5:26 And he will lift up an ensign to the nations from far, and will hiss unto them from the end of the earth: and, behold, they shall come with speed swiftly: - Free Bible Online

      26. lift . . . ensign--to call together the hostile nations to execute His judgments on Judea (Isa 10:5-7; 45:1). But for mercy to it, in Isa 11:12; 18:3.
      hiss-- (Isa 7:18). Bees were drawn out of their hives by the sound of a flute, or hissing, or whistling (Zec 10:8). God will collect the nations round Judea like bees (De 1:44; Ps 118:12).
      end of the earth--the widely distant subject races of which the Assyrian army was made up (Isa 22:6). The ulterior fulfilment took place in the siege under Roman Titus. Compare "end of the earth" (De 28:49, &c.). So the pronoun is singular in the Hebrew, for "them," "their," "whose" (him, his, &c.), Isa 5:26-29; referring to some particular nation and person [HORSLEY].

JFB.