The Epistemological Implicates of Faith A athestic student asks a theistic student: "I see you go to church every Sunday and I think you believe in God. But What is God and how to know about His Existence?" the latter answers: "Oh, He is very important for my life. So I go to church every Sunday. But...I just know that He exists. Even though I could not express, I am sure that He is there." Normally, the theistic student claims that the term "God" has a very important significance for them, are making a definite knosledge-claim that must be considerd seriously though he do not has any extra-ordinary, direct, mystical communication with God. So the question is what kind of the knowledge of God he has. And what is the difference between this knowledge from scientific knowledge and from the knowledge of the mystic. In this paper, I want to discuss about the knowledge of the man who is call "ordinary believer". What is the basis of the claim of ordinary believer? Claim knowledge of something needs a basis. So the claim knowledge of the Existence of God of the ordinary believer also has its own basis. It is based not on a logical argument from particualr premises to a particular conclusion, but on a much wider and deeper foundation than could ever be the basis of such a formal argument. The experience of God that he claims is not detached at any point from the rest of experience, but premeates this. As a man, all of us realize that it is necessary to make "tacit assumptions" to the effect that somehow or other life "make senses". We are able to "make sense" of life and all we need is the "tacit assumption". It always "lies behind" and also permeates the rest of our experience. And every philosopher who wants to express his thought about the human-life has to find out a "tacit assumption" on which his system of philosophy of human is based. Therefore, the theist's view implies a claim to a kind of knowledge of God which is certainly not knowledge in the sense in which we use the term when we speak of knowing a house or knowing English, even knowing one's father or brother and they use the term "faith" to