John Wesley on Job 38:1

Lord - The eternal word, Jehovah, the same who spake from mount Sinai. Answered - Out of a dark and thick cloud, from which he sent a tempestuous wind, as the harbinger of his presence. In this manner God appears and speaks to awaken Job and his friends, to the more serious attention to his words; and to testify his displeasure both against Job, and them, that all of them might be more deeply humbled and prepared to receive, and retain the instructions which God was about to give them.