Oh that I might have my request - To wit, death. This he desired as the end of his sorrows, either that he might be freed from them, or that he might be admitted to a happy world - or both.

Would grant me the thing that I long for - Margin, "My expectation." That is, death. He expected it; he looked out for it; he was impatient that the hour should come. This state of feeling is not uncommon - where sorrows become so accumulated and intense that a man desires to die. It is no evidence, however, of a preparation for death. The wicked are more frequently in this state than the righteous. They are overwhelmed with pain; they see no hope of deliverance from it and they impatiently wish that the end had come. They are stupid about the future world, and either suppose that the grave is the end of their being, or that in some undefinable way they will be made happy hereafter. The righteous, on the other hand, are willing to wait until God shall be pleased to release them, feeling that He has some good purpose in all that they endure, and that they do not suffer one pang too much. Such sometimes were Job's feelings; but here, as in some other instances, no one can doubt that he was betrayed into unjustifiable impatience under his sorrows, and that he expressed an improper wish to die.

Job 6:8 Parallel Commentaries

The Sinner Stripped of his Vain Pleas.
1, 2. The vanity of those pleas which sinners may secretly confide in, is so apparent that they will be ashamed at last to mention them before God.--3. Such as, that they descended from pious us parents.--4. That they had attended to the speculative part of religion.--5. That they had entertained sound notion..--6, 7. That they had expressed a zealous regard to religion, and attended the outward forms of worship with those they apprehended the purest churches.--8. That they had been free from gross …
Philip Doddridge—The Rise and Progress of Religion in the Soul