Adam Clarke on Job 3:9

Let the stars of the twilight thereof - The stars of the twilight may here refer to the planets Venus, Jupiter, Mars, and Mercury, as well as to the brighter fixed stars.

Let it look for light - Here the prosopopoeia or personification is still carried on. The darkness is represented as waiting for the lustre of the evening star, but is disappointed; and these for the aurora or dawn, but equally in vain. He had prayed that its light, the sun, should not shine upon it, Job 3:4; and here he prays that its evening star may be totally obscured, and that it might never see the dawning of the day. Thus his execration comprehends every thing that might irradiate or enliven it.