'Thick Cloud' in the Bible

He maketh darkness His secret place, Round about Him His tabernacle, Darkness of waters, thick clouds of the skies.

From the brightness over-against Him His thick clouds have passed on, Hail and coals of fire.

Poured out waters have thick clouds, The skies have given forth a noise, Also -- Thine arrows go up and down.

Who is laying the beam of His upper chambers in the waters, Who is making thick clouds His chariot, Who is walking on wings of wind,