God is...

Within the context of the Hebrew Bible, the book of Job thus primarily contradicts the God of justice as presented by the prophets: God, as Job shows us, can destroy us without reason. It also contradicts the merciful God of Priestly literature: we must accept God not only as the present God; he is also the absent God. Finally, the book of Job also provides, in some of its parts, a parody on the piety of the Psalms: Job’s situation transcends the options for reaching God provided by the Psalms.

For the book of Job, God is not just or merciful, yet he is also not unjust or cruel; instead God is—God. In the context of these various biblical positions, this statement is more than mere tautology, it is a critical position all its own. It is a striking statement, because it shows us that speaking of God was no easier in antiquity, with its mythically charged worldview, than it is for modern times.— Job's Journey, page 24

<idle musing>
Amen and amen! Maybe the primary reason for including Job in the canon was to let people know that God is bigger than our concepts of him?
</idle musing>