Then the Lord answered Job out of the whirlwind. It is remarked, with reason, that the special mention of Job as the person answered "implies that another speaker had intervened" (Wordsworth); while the attachment of the article to the word "whirlwind" implies some previous mention of that phenomenon, which is only to be found in the discourse of Elihu (Job 37:9).
Both points have an important bearing on the genuineness of the disputed section, ch. 32-37. And said. The question whether there was an objective utterance of human words out of the whirlwind, or only a subjective impression of the thoughts recorded on the minds of those present, is unimportant.
In any case, there was a revelation direct from God, which furnished an authoritative solution of the questions debated to all who had been engaged in the debate.