Commentaries:
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
Other Forerunner Commentary entries containing Psalms 29:10:
Revelation 19:16