What the Bible says about Thunder as a Metaphor for God's Voice
(From Forerunner Commentary)

Psalm 29:1-11 David uses "thunder" as a metaphor for the voice of God. For the purpose of instruction, the reason is to make obvious the connection between something that everybody is familiar with—the powerful, reverberating sound of thunder—and the power of God's spoken Word. John W. Ritenbaugh Unity (Part 4): The Voice of God Related Topics: God's Voice | Thunder as the Voice of God | Voice of God