The Gospel of John is interpreted in this commentary as a masterful narrative of the story of Jesus Christ. Under the guidance of the Paraclete, John undertakes a linguistic and conceptual reformulation of the message of Christ around 100 AD, writing the first introduction to Christianity. He designs a new literary and theological world, whose appeal is particularly strong in the present day. The 5th edition presented here represents a thorough revision. In addition to a detailed introductory section and continuous text interpretation, the commentary now also offers a comprehensive introduction to Johannine theology with a total of 16 excursuses. The theological orientation of the Gospel and its historical context as the conclusion and culmination of Johannine theology are more sharply defined.