The voice of the Lord is upon the waters— The voice of the Lord was over the waters, (the God of glory thundered) of the Lord, over great waters. This, with the deluge mentioned Psalms 29:10., shews that there were violent rains.
Related Commentaries of Psalms 29:3
Psalms 29:3
3 The voice of the LORD is upon the waters: the God of glory thundereth: the LORD is upon manyc waters.