"Now we have received, not the spirit of the world, but the spirit which is of God; that we might know the things that are freely given to us of God." 1 Corinthians 2:12
What thick clouds of darkness spread themselves at times over our souls; all things out of sight; our signs and tokens buried, as it were, in mist. It is like a sea fog, that comes out of the bosom of the vasty deep, and hides all objects from view. The ships are on the sea, notwithstanding, but this deep fog prevents their being seen. So with our souls at times, all is misty, cloudy, and no signs can be seen of the work of God upon our hearts. And yet we "know" them, by receiving the Spirit of God, for it is the only way whereby they can be known. We can only see light in God's light; only believe by God's faith; only love by God's love; therefore can only know the things freely given to us of God by the revelation of the Spirit.
What we know savingly, experimentally, feelingly, we know only by divine teaching. How dark our mind often is; how low we sink at times; it is only the Son of God that can enable us to rise; only by the revelation of his Spirit can we believe that we are his. We know he is God when he shines forth, as we know the sun when it blazes forth in the summer sky. We know him by the teaching of the Spirit, but cannot see him till our eyes are divinely opened. The sun may shine in all its glory—does that communicate light to the eyes of the blind? or warm the corpse lying in the coffin? The blind see not; the dead hear not; the living, the living alone see and know the Son of God.