"But God hath revealed them unto us by his Spirit: for the Spirit searcheth all things, yea, the deep things of God." (1 Cor. 2:10).
If you have received Christ as your Savior, you have the Holy Spirit dwelling in your body and the Spirit of God will reveal truth to you. His Word is truth. THerefore, if you study His Word, the Holy Spirit will reveal His truth to you.
God did not say that miracles, signs, wonders, apparitions, masses, religious institutions, wafers, wine, statues, saints, rosaries, incense, chants, lighting candles, or fallible men who declare themselves infallible, would reveal His truth. He said the Holy Spirit would reveal truth. IF the Holy Spirit resides in you. And if you are saved, you are a member of the body of Christ, and the Holy Spirit resides in you.