God speaks to us in many ways, through nature, through providence, through the witness of the Character of God through the actions of others, and through the inspiration of the spirit speaking in the word of God. "Faith Comes by hearing... and hearing comes by the word of God." God is the source of faith, humanity is the source of unbelief.
i wonder if every Christian doesn't go through the process, of sorting out what is their faith and what is the source of their faith, and is their faith in God, or in man. I believe we tend to over idealize church, and the institutions of the church, schools, hospitals, and various churches, or prominent church families. It can be so deeply disappointing to find we cannot place our faith on our own best efforts, or in our most wonderful institutions. But this disappointment must come if our faith is not riveted in Christ.
unfortunately, supernatural experiences can leave our faith in humanity. the flow of money can be deceptive. we can be so rapt by material blessings we fail to maintain that God is the source of our strength, and hope. emotions can override our will to serve God, and we can inadvertently end up yielding to the will of flesh over the will of God. there is a roaring lion going about seeking whom he may devour. only Christ can interrupt this enemy.