And what gives Christianity this extraordinary combination of breadth and depth is the event of Whitsunday--the coming of the Holy Spirit. As St. John says, "the Holy Spirit will teach you all things"--that is the breadth--and will "bring all things to your remembrance" about the earthly life and teaching of Christ--that is the depth. All through Christian history, but particularly today, two opposing tendencies can be seen at work. One is the desire to liberalize Christianity and make it more inclusive. Some, noting the good in out of the way places--there is honesty among thieves and there is sincerity among atheists, would push Christianity to a point where it would include all good wherever found and in whatever combination. The logical conclusion would be to turn it into a kind of pantheism--a catch-all for all truth, goodness, and beauty. A good Buddhist is really a good Christian whether he knows it or not, they would say, in spite of the fact that he would be considerably annoyed to be told so. In this drive to be comprehensive, the specific doctrines of the church would have to be scrapped or soft-pedalled and the emphasis be put upon right living, whatever that is. 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.