John 20:25
So the other disciples told him, 'We have seen the Lord.' But he said to them, 'Unless I see the mark of the nails in his hands and put my finger in the mark and put my hand in his side, I will not believe' — Thomas demands empirical, tactile proof; his list of verification (seeing nails, touching wounds, placing hand in side) mirrors but exceeds the seeing of others. His condition is not faithlessness but the demand that resurrection be bodily, not phantom. His refusal to accept the disciples' testimony places him at the Gospel's crisis point: faith through witness versus faith through direct encounter.