If you feel at this point like smiling in superior fashion at these liberalizers, examine your own mind for a moment and see if at least part of you doesn't agree with this. For example, have you ever felt or said about so-and-so who is an agnostic and never darkens the door of a church, that he is a better Christian than you, since he is more generous, more courageous, more generally virtuous? And this you say, not out of humility, but from a suspicion that he is in better touch with the source of goodness than you are.
And I could go on to point out other reasons why we would like to extend the label of Christianity as far as possible.
But the opposite tendency is also strong within us. Make Christianity precise, define carefully its limits and make membership within it rigorous and single-minded. I heard of a clergyman, who when asked how his congregation was doing, replied, "Fine-thinning 'em out, thinning 'em out."
We are aware of the strength that lies in narrowness and secretly covet the simplification and order of an authoritarian church.
However forceful these opposing tendencies may be we know at least that neither one can be allowed to run wild without disaster to Christianity. There must be an integrating force that holds these together and leads to the productiveness that flows out of the tension between them.
That force is the Holy Spirit. The Holy Spirit proceeds from the Father, through the Son. He always refers back to Christ as the incarnate center of Christian life, and thence to God who is the source of the love that binds men into one communion and fellowship. Confusion exists because there are many spirits in the world—spirits of a nation, of humanity, of progress. But these are never to be identified with the Holy Spirit, who always brings to remembrance Christ himself, who must become the corner stone of all life everywhere. To be apart from him is to be apart from God. To forget this is the danger of liberalism.
But on the other hand, the Holy Spirit will teach you all things, and as Canon Quick says, "is the moving spirit in the Communion in God among men, a Communion which embraces all things both sacred and secular and cannot be confined to man-made limitations." In forgetting this lies the danger of sectarianism.
The work of the Holy Spirit begins with Christ and continues to the end of the earth. That is the spirit we pray for and can expect to receive on Whitsunday. Don't be content with anything less.