Adam Clarke's Commentary on the Bible - Psalms 18:12
At the brightness that was before him his thick clouds passed - The word נגה nogah signifies the lightning. This goes before him: the flash is seen before the thunder is heard, and before the rain descends; and then the thick cloud passes. Its contents are precipitated on the earth, and the cloud is entirely dissipated. Hail-stones and coals of fire - This was the storm that followed the flash and the peal; for it is immediately added: - read more
Adam Clarke's Commentary on the Bible - Psalms 18:11
He made darkness his secret place - God is represented as dwelling in the thick darkness, Deuteronomy 4:11 ; Psalm 97:2 . This representation in the place before us is peculiarly proper; as thick heavy clouds deeply charged, and with lowering aspects, are always the forerunners and attendants of a tempest, and greatly heighten the horrors of the appearance: and the representation of them, spread about the Almighty as a tent, is truly grand and poetic. Dark waters - The vapors... read more