Job 40 - Voice out of the Whirlwind

We dont always find the LORD via his still small voice.

1Ki 19:11 And he said, Go forth, and stand upon the mount before the LORD. And, behold, the LORD passed by, and a great and strong wind rent the mountains, and brake in pieces the rocks before the LORD; but the LORD was not in the wind: and after the wind an earthquake; but the LORD was not in the earthquake:

1Ki 19:12 And after the earthquake a fire; but the LORD was not in the fire: and after the fire a still small voice.

Gill writes:
and after the fire a still small voice: not rough, but gentle, more like whispering than roaring; something soft, easy, and musical; the Targum is, the voice of those that praise God in silence; and all this may be considered as showing the difference between the two dispensations of law and Gospel; the law is a voice of terrible words, and was given amidst a tempest of wind, thunder, and lightning, attended with an earthquake, Heb 12:18, but the Gospel is a gentle voice of love, grace, and mercy, of peace, pardon, righteousness, and salvation by Christ; and may also point at the order and manner of the Lord's dealings with the souls of men, who usually by the law breaks the rocky hearts of men in pieces, shakes their consciences, and fills their minds with a sense of fiery wrath and indignation they deserve, and then speaks comfortably to them, speaks peace and pardon through the ministration of the Gospel by his Spirit; blessed are the people that hear this still, small, gentle voice, the joyful sound, Psa 89:15.

1Ki 19:13 And it was so, when Elijah heard it, that he wrapped his face in his mantle, and went out, and stood in the entering in of the cave. And, behold, there came a voice unto him, and said, What doest thou here, Elijah?

But this is not always the case...

Job 40:6  Then answered the LORD unto Job out of the whirlwind, and said,....

You can read on, he says a lot!
Jer 30:23  Behold, the whirlwind of the LORD goeth forth with fury, a continuing whirlwind: it shall fall with pain upon the head of the wicked.