The advantage of believing in the reality of the Trinity is not that we get an A from God for giving “the right answer.” Remember, to believe something is to act as if it is so. To believe that two plus two equals four is to behave accordingly when trying to find out how many dollars or apples are in the house. The advantage of believing it is not that we can pass tests in arithmetic; it is that we can deal much more successfully with reality. Just try dealing with it as if two plus two equaled six.
Hence, the advantage of believing in the Trinity is that we then live as if the Trinity is real: as if the cosmos environing us actually is, beyond all else, a self-sufficing community of unspeakably magnificent personal beings of boundless love, knowledge, and power.
And, thus believing, our lives naturally integrate themselves, through our actions, into the reality of such a universe, just as with two plus two equals four.
In faith we rest ourselves upon the reality of the Trinity in action–and it graciously meets us. For it is there. And our lives are then enmeshed in the true world of God.
This is an excerpt from a book The Divine Conspiracy by Dallas Willard. If you would like to buy this book please click here.