This book is mainly rooted in Chapters 1 to 4 of the Gospel according to John. It isn't a commentary of the book of John but it's the Good News of the Lamb of God who takes away the sin of the world and its effects. Although the roots of the book mainly emanate from the book of John there are also many other reference verses I used from other books of the Bible to highlight this Good News which is the power of God to save. The first four Chapters of the book of John form the main frame of reference of this book because initially I wanted to write one book based on the book of John after I was persuaded that God was directing me to do so. After writing with reference to the first four Chapters of John I realised that the manuscript was becoming larger than I intended it to be. So, I decided to have this particular title in a series of books in this book size. As a result, this is book one of the series of books called THE LAMB OF GOD: WHO TAKES AWAY THE SIN OF THE WORLD. Since the main frame of reference of this book is in the book of John let me give you interesting information about the author of the book of John. The author of the book of John is the disciple whom Jesus loved (Jn 19:26; 21:7). He is that unnamed disciple of John the Baptist who later followed Jesus. He is the writer of the letters of John and the book of Revelation. In all his books he did not refer to himself by name. Before John was called by Jesus he was a businessman; precisely, he was involved in the business of catching and retailing fish. He used to alternate on business between the rural north in Galilee and the urban south in Jerusalem. He owned a home in Jerusalem. Shortly before the destruction of Jerusalem by the Romans in 70 AD, he relocated to Ephesus. There he pastored a Church. He was also a cousin of Jesus and the brother of James, one of the disciples. John, James and Peter were the 'inner-circle' of the disciples. They were closest to Jesus; they had a special relationship with the Lord. Here and there the Bible refers to the three to the exclusion of other disciples. For instance, they were with him on the mount of transfiguration (Mt17:1-13; Lk 9:27-36). They were also with Him for the healing of Jairo's' daughter (Mk 5:37). The fact that John referred to himself in his writings as the disciple whom Jesus loved shows that he was the closest disciple to Jesus. He was His closest friend. It also indicates that John had a deeper insight of the love of God-expressed though Jesus. Apostle John, the youngest of the twelve Apostles, was called by the Lord when he was about 25. He also outlived all the Apostles of the Lamb; he was the last one to die. He died when he was 93. Unlike others John died of natural causes; he is the only one who wasn't martyred. John wrote his Gospel between AD 80 and 100, near the end of the first century-some 20 to 30 years after the other three Gospels. He wrote when all the New Testament was complete except for his writings. He was really an old man. The Gospel of Christ had been preached. Even Paul and Peter had been martyred. All the Apostles of the Lamb had died. Jerusalem had also been destroyed by the Romans (AD 70). Apostle John was so old that many people believed that he would live until Jesus's return. It is encouraging to see that even though he was of such an old age God still had a mission for him. This shows that age is nothing but a number.