Clarke's Bible Commentary - Job 33:15

In a VISION of the night-in slumberings upon the bed ] Visions or images presented in the imagination during slumber, when men are betwixt sleeping and waking, or when, awake and in bed, they are wrapt up in deep contemplation, the darkness of the night having shut out all objects from their sight, so that the mind is not diverted by images of earthly things impressed on the senses. Many warnings in this way have come from God; and the impression they made, and the good effect they produced, were the proofs of their Divine origin. To deny this would be to call into doubt the testimony of the best, wisest, and holiest men in all ages of the Church. Of one of these visions we have a remarkable account in this book, chap. iv. 12-21. And this vision seems to have taken place in the night season, when Eliphaz awoke from a deep sleep. There is this difference between the accidents of the dream and the vision: the former takes place when deep sleep falleth upon men; the latter, in the night, in or after slumberings upon the bed.

Matthew Henry Commentary

Original Hebrew