But Thomas, one of the twelve, called Didymus, was not with them when Jesus came. The other disciples therefore said unto him, We have seen the Lord. But he said unto them, Except I shall see in his hands the print of the nails, and put my hand into his side, I will not believe. And 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 unto you. Then saith he to Thomas, Reach hither thy finger, and see my hands; and reach hither thy hand, and put it into my side: and be not faithless, but believing. Thomas answered and said unto him, My Lord and my God. Jesus saith unto him, Because thou hast seen me, thou hast believed: blessed are they that have not seen, and yet have believed.
Jesus told him, "I am the way, the truth, and the life. No one can come to the Father except through me." (John 14:6)