He directeth it under the whole heaven - It is under the control of God, and he directs it where he pleases. It is not confined to one spot, but seems to be complaining from every part of the heavens.
And his lightning - Margin, as in Hebrew “light.” There can be no doubt that the lightning is intended.
Unto the ends of the earth - Margin, as in Hebrew “wings.” The word wings is given to the earth from the idea of its being spread out or expanded like the wings of a bird; compare Job 38:13; Ezekiel 7:2. The earth was spoken of as an expanse or plain that had corners or boundaries (see Isaiah 11:12, note; Isaiah 24:16, note; Isaiah 42:5, note), and the meaning here is, that God spread the lightning at pleasure over the whole of that vast expanse.