John 20:31

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.

After recording the indisputable evidences for the greatest miracle of all and the reception of the miracle by the disciples, John here summarizes and states the purpose of his gospel. He expressly writes that he has not nearly exhausted the recital of Christ's miracles, but has given an account of only so many as are necessary to convince the readers of the gospel and work faith in Jesus the Christ, the Savior, the Son of God, in their hearts. For; this is his thesis, as he distinctly asserts. His aim was to prove the deity of Christ and to work conviction in the hearts of men by such; proof, in. order that they might believe and by faith have the everlasting life which is in Christ and is given by Christ to them that believe in His name. That name, Jesus Christ, is not a mere appellation, a meaningless sound, but is itself glorious, beautiful Gospel which gives to the believers eternal life.

Summary After Mary Magdalene and then Peter and John have inspected the empty grave, Jesus appears to Mary, on the evening of Easter Day to the disciples without Thomas, and eight days later to them all, with the comforting evidence and message of the resurrection.