Now Thomas (called Didymus), one of the Twelve, was not with the disciples when Jesus came. (John 20:24)
demanding proof
So the other disciples told him, "We have seen the Lord!" But he said to them, "Unless I see the nail marks in his hands and put my finger where the nails were, and put my hand into his side, I will not believe it." (John 20:25)
response of faith
Thomas said to him, "My Lord and my God!" (John 20:28)
Gospel
provides evidence
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. (John 20:30-31)
provokes response
Then Jesus told him, "Because you have seen me, you have believed; blessed are those who have not seen and yet have believed." (John 20:29)
Ourselves
require personal encounter
Do we believe?
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. (John 20:31)