The isles saw it, and feared. A general terror seized the nations on the conquest of the Medes by Cyrus. Croesus of Lydia, Nabonidus of Babylon, and Amasis of Egypt, were at once drawn together by the common danger, and made alliance offensive and defensive (Herod; 1.
77). The weaker tribes and peoples gave themselves up for lost. Scarcely any resistance seems to have been offered to the Persian arms by the tribes between the Halys and Indus, the Jaxartes and the Indian Ocean.
Lydia and Babylon alone made a stout fight; but even these were conquered without very much difficulty. The ends of the earth … drew near; i.e. distant nations held (will hold) consultation together on the danger which threatens them.
The league of Lydia, Babylon, and Egypt is the only known instance of such "drawing near" (see the preceding note). Isaiah anticipates marked consultations and exhortations with respect to the idol-gods, in which trust should be put; but perhaps he is scarcely serious in verses 6, 7.
Rather he is indulging his sarcastic humour at the expense of the idols and of those who put their trust in them.