"According to Kierkegaard: Since existence “means the making of moral choices, it is perpetual “either-or” and a life of action. One who merely contemplates a truth is apt to become a “traitor like Judas.” An uncommitted person is not person at all. The ideal of suspended judgment is a high road to moral suicide. Man must act for by his choices he makes himself. In its emphasis upon commitment "Existentialism” comes the nearest to new Testament Christianity. Existence, according to Kierkegaard is a state of anxious suspense and only the paradoxical “leap into faith” will give man certitude in God. The opposite of sin is not virtue but faith. Man's existence, declared Kierkegaard, “is an experience or process of sustained becoming or developing by moral striving and tension. He can never, therefore, be a Christian but only attempt to become one.” Kierkegaard's slant on man is sometimes aesthetic, at times ethical, but in its final form it is theological, concerned with the problem of being a Christian. As a theologian, he has had a singular influence on Karl Barth, Reinhold Neibuhr, Paul Tillich, Emil Brunner, and other leading Protestant theologians of our times."