John 20:22-27

²²When he had said this, he breathed on them; and he said to them: Receive ye the Holy Ghost.

²³Whose sins you shall forgive, they are forgiven them; and whose sins you shall retain, they are retained.

²⁴Now Thomas, one of the twelve, who is called Didymus, was not with them when Jesus came.

²⁵The other disciples therefore said to him: We have seen the Lord. But he said to them: Except I shall see in his hands the print of the nails, and put my finger into the place of the nails, and put my hand into his side, I will not believe.

²⁶And after eight days again his disciples were within, and Thomas with them. Jesus cometh, the doors being shut, and stood in the midst, and said: Peace be to you.

²⁷Then he saith to Thomas: Put in thy finger hither, and see my hands; and bring hither thy hand, and put it into my side; and be not faithless, but believing.