Green discusses the idea that many hold that all religions are the same in their essence and lead to the same god, and that therefore we should be tolerant of them and not insist there's only one right religion. He questions this idea: "What if one religion really does give a fuller expression of that essence than another?" Christianity, he says, "stands out from all other faiths. It maintains that the living God has come to share our human situation, died an agonizing death in which He took responsibility for human wickedness and broke the last barrier, death, on the first Easter day, with incalculable consequences for His followers and the whole world. No other faith claims anything like that" (p. 18).
Furthermore, he argues that there are two main reasons why all religions do not lead to God. First, God is too great; "the created cannot possibly discover the Creator unless He chooses to disclose Himself" (p. 23). And this is what Christianity has done, he claims: "the Bible does not record the story of human being sin search of God, but of God in search of human beings." The second reason all religions do not lead to God, he argues, is that humankind is too wicked and self-centered to want to truly seek God.
Christianity, he says, is different from all other religions because of Jesus himself. Jesus is different from all other religious leaders in that, 1) his influence, teaching, and character were unparalleled, 2) Jesus claimed to share the nature of God (evidence: his morally upright life; his profound and authoritative teaching; his miracles over nature, of healing, and of his birth; his fulfillment of prophecies; and his claims ("the Bread of Life," "The Way to God," etc.)), 3) In love, Jesus offered himself as a sacrifice for our sins in order to sanctify us through the offering of his body, and to reconcile humankind to God, 4) He conquered death on Easter day, 5) he promised to live in the hearts and lives of his followers in the form of the Holy Spirit. ". . . the secret of being a Christian at all is to have welcomed the Spirit of Jesus Christ into heart and life. It is not just trying to follow excellent teaching, as in the case of other religions, but of welcoming the indwelling Christ!" (70) "That was and remains the heart of Christian morality. Not keeping a rule book, but loving and pleasing a person [Jesus], and in His power overcoming the base tendencies of human nature and pouring out the love of Christ to others." (71)