|Jesus did many other miraculous signs in the presence of his disciples, which are not recorded in this book. But these are written that you may believe that Jesus is the Christ, the Son of God, and that by believing you may have life in his name.|
|And many other signs truly did Jesus in the presence of his disciples, which are not written in this book: But these are written, that ye might believe that Jesus is the Christ, the Son of God; and that believing ye might have life through his name.|
|Therefore many other signs Jesus also performed in the presence of the disciples, which are not written in this book; but these have been written so that you may believe that Jesus is the Christ, the Son of God; and that believing you may have life in His name.|
|John 20:30-31 |
Not all the miracles performed by Jesus are recorded in John's Gospel. The Holy Spirit selected those signs which would best serve His purpose.
Here we have John's object in writing the book. It was so that his readers may believe that Jesus is the true Messiah and the Son of God. Believing, they will have eternal life in His name. Have you believed?
MacDonald, W., & Farstad, A. (1997, c1995). Believer's Bible Commentary : Old and New Testaments (Jn 21:1). : Thomas Nelson.
John, probably written last of the four Gospels, does not repeat most of stories that have been circulating for decades. Instead, it focuses on Jesus' deity, using carefully selected miracles and teachings that propel this theme.
Miller, S. M., & Gross, P. (1998). How to get into the Bible. Includes index. (313). : T. Nelson Publishers.