In that case,
Holy999, you cannot call yourself a Bible-believing Christian. I don't mean this as an insult or rebuke, just as a fact. It is an oxymoron for a Christian to not know the Spirit of God.
1Co 2:14 But the natural man receives not the things of the Spirit of God: for they are foolishness unto him: neither can he know them, because they are spiritually discerned.
Naturalism claims that energy and matter are all that exist, and Empiricism that only what is experienced can be known.
The fallacy of empiricism is that its very claims cannot be experienced and therefore known, so it is an invalid theory.
Likewise, the naturalist who denies the supernatural, metaphysical, and spiritual realm, rejects the very facility through which this may be known.
Joh 3:8 The wind blows where it wishes, and you hear the sound thereof, but cannot tell whence it comes, and whither it goes: so is every one that is born of the Spirit.