§ 293 But it can be demonstrated with substantial arguments that the Book of Revelation is canonical and was written by the apostle John: (1) From its inscription. The inscription is quite clear: “The Revelation of John the theologian.” It is apparent that the apostle John is that “theologian” par excellence. This is apparent from the conformity of the introduction used in this book with the one used in the Gospel, as well as the one in the first Epistle. The author of this book writes: “Jesus Christ gave this revelation to His servant John, who bore witness to the Word of God and to the testimony of Jesus Christ, even to all that he saw.” (1:1-2). In almost the same way John speaks of himself in his Gospel: “This is that disciple who is bearing word to these things and ho has written these things; and we know that his testimony is true” (21:24). He begins his first Epistle in the same manner: “That which was from the beginning, which we have seen, which we have heard, which we have looked on with our eyes, this we proclaim to you” (1 John 1:1-3).
On the Nature of Theology and on Scripture