Someone else here has quoted this scripture about the prophet Elijah, but let me repeat it here.
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:
And after the earthquake a fire; but the LORD was not in the fire: and after the fire a still small voice.
So often people look for God to reveal himself in some powerful display intended to convince them of His existence. The truth is that God speaks to all of us but we fail to hear because because we’re not expecting this still, barely audible voice inside of our heads. We expect the voice of God to be this dramatic event in the outer world demanding our attention. God sent Elijah to wait for him in a cave. A great whirlwind appeared and Elijah thought “This must be God displaying his Greatness.” But no, the Lord was not in the wind, even though it was so forceful it broke the very rocks where he stood. Then there was a great earthquake and Elijah thought “Surely this is the Lord whose voice makes the very earth quake in fear and trembling!” But no, the Lord was not in the earthquake.
Following the earthquake was a great fire. “Surely this must be the God who revealed himself to Moses in the midst of the burning bush.” But alas, still God was not in the fire. It was only when Elijah stilled his mind and stopped looking for God to show himself outside the cave in a grand display of power and authority that God appeared in a still small voice inside his head.
There are times that God does seem to appear in the whirlwind, or the earthquake, or the fire. The problem is that faith born of external experience like that does not fully take hold in a person, and they so quickly turn away in the face of adversity. They are like the seed that falls in shallow earth. It blossoms quickly, but just as quickly withers away in the heat of the day. The revelation of Christ was that God dwells in every one of us individually. He did not dwell in that beautiful temple in Jerusalem made by hands but within the believer.
It takes time to cultivate the inner ear to hear that still small voice. But it is there if you can stop looking for the loud voice to appear outside of yourself and quiet the other loud voices inside your head. For God is not there in all those things, but speaking softly in that inner, barely audible, but unmistakable, still, small voice.