During the next few days, many of the disciples saw Jesus. But Thomas did not see Him. And so Thomas had a hard time believing that Jesus had really risen from the dead. Thomas told the others, "Unless I see the holes in His hands where the nails went through, I won't believe that Jesus is alive."
A week later, Jesus appeared to the disciples again. And this time Thomas was there. "Touch the holes in My hands," said Jesus as He showed Thomas the nail holes. "Now stop doubting and believe."
It would be natural to suspect that the person who came to the disciples wasn't the same Jesus who had been nailed to the cross. But he showed them his hands and his side where the wounds of his death were. There could be no mistake. Jesus was alive, and the disciples lived and died telling others this great news for all the world.