That it might take hold of the ends of the earth - Margin, as in Hebrew “wings.” Wings are in the Scriptures frequently given to the earth, because it seems to be spread out, and the expression refers to its extremities. The language is derived from the supposition that the earth was a plain, and had limits or bounds. The idea here is, that God causes the light of the morning suddenly to spread to the remotest parts of the world, and to reveal everything which was there.
That the wicked might be shaken out of it - Out of the earth; that is, by the light which suddenly shines upon them. The sense is, that the wicked perform their deeds in the darkness of the night, and that in the morning light they flee away. The effect of the light coming upon them is to disturb their plans, to fill them with alarm, and to cause them to flee. The idea is highly poetic. The wicked are engaged in various acts of iniquity under cover of the night. Robbers, thieves, and adulterers, go forth to their deeds of darkness as though no one saw them. The light of the morning steals suddenly upon them, and they flee before it under the apprehension of being detected. “The dawn,” says Herder, “is represented as a watchman, a messenger of the Prince of heaven, sent to chase away the bands of robbers.” It may illustrate this to observe that it is still the custom of the Arabs to go on plundering excursions before the dawn. When on their way this faithful watchman, the aurora, goes out to spread light about them, to intimidate them, and to disperse them; compare the notes at Job 24:13-17.