John 20:29-31

29Then Jesus told him, “Because you have seen me, you have believed; blessed are those who have not seen and yet have believed.”

The Purpose of John’s Gospel 30Jesus performed many other signs in the presence of his disciples, which are not recorded in this book. 31But these are written that you may believe Or may continue to believe that Jesus is the Messiah, the Son of God, and that by believing you may have life in his name.