John 20:19-31 in the Gospel of John recounts the risen Jesus appearing to his disciples in a locked room after his resurrection. The disciples, including Thomas, initially doubted Jesus's presence. However, when Jesus allowed them to touch his wounds and prove his true identity, they came to believe, and Jesus affirmed that those who believe without seeing are blessed. This Easter story emphasizes the reality of the resurrection, the power of faith, and the importance of recognizing Jesus's identity as the Messiah.