Apostle John (son of Zebedee and brother of James), wrote his book to demonstrate that Jesus was the Son of God.
In every chapter Jesus deity is revealed – Word, only begotten, Lamb of God, Son of God, true Bread, Life, Resurrection, Vine, I AM.
The greatest sign is the resurrection. John provides a stirring eyewitness account of finding the empty tomb. Then he records various post-resurrection appearances by Jesus.
He clearly and systematically presented the evidence. Individuals who read the Gospel of John have to make a choice – is Jesus Christ the Son of God, or isn’t he? You are the jury. The evidence has been clearly presented. You must decide.