John 20:24-28 (NIV) 24 Now Thomas (called Didymus), one of the Twelve, was not with the disciples when Jesus came. 25 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." 26 A week later his disciples were in the house again, and Thomas was with them. Though the doors were locked, Jesus came and stood among them and said, "Peace be with you!" 27 Then he said to Thomas, "Put your finger here; see my hands. Reach out your hand and put it into my side. Stop doubting and believe." 28 Thomas said to him, "My Lord and my God!"
1 Corinthians 15:21-22 (NIV) 21 For since death came through a man, the resurrection of the dead comes also through a man. 22 For as in Adam all die, so in Christ all will be made alive.
Romans 4:25 (NIV) He was delivered over to death for our sins and was raised to life for our justification.
Luke 24:1-7 (NIV) 1 On the first day of the week, very early in the morning, the women took the spices they had prepared and went to the tomb. 2 They found the stone rolled away from the tomb, 3 but when they entered, they did not find the body of the Lord Jesus. 4 While they were wondering about this, suddenly two men in clothes that gleamed like lightning stood beside them. 5 In their fright the women bowed down with their faces to the ground, but the men said to them, "Why do you look for the living among the dead? 6 He is not here; HE HAS RISEN!
The great Easter truth is not that we are to live newly after death—that is not the great thing—but that we are to be new here and now by the power of the Resurrection; not so much that we are to live forever, as that we are to, and may, live nobly now because we are to live forever. Phillips Brooks—Illustrations Unlimited.