Adam Clarke on Job 15:22

That he shall return out of darkness - If he take but a few steps in the dark, he expects the dagger of the assassin. This appears to be the only meaning of the place. Some think the passage should be understood to signify that he has no hope of a resurrection; he can never escape from the tomb. This I doubt: in the days of the writer of this book, the doctrine of a future judgment was understood in every part of the East where the knowledge of the true God was diffused.