"Think about it: in your pocket, you have a camera, and a computer, connected to each other in one little device," he said.
"The shroud has become one of the most studied artifacts in human history itself, and modern science doesn't have an explanation for how those chemical and physical properties can be made."
While the image on the Shroud of Turin was the most convincing evidence for him, he said it was only a fraction of all the scientific data which points to it being real.
"Really, it's an accumulation of thousands of little tiny bits of evidence that, when put together, are overwhelming in favor of its authenticity."
Despite the evidence, many skeptics question the evidence without having seen the facts. For this reason, Schwortz launched the website www.shroud.com, which serves as a resource for the scientific data on the Shroud.
Nonetheless, he said, there are many who still question the evidence, many believing it is nothing more than an elaborate medieval painting.
"I think the reason skeptics deny the science is, if they accept any of that, their core beliefs have been dramatically challenged, and they would have to go back and reconfigure who they are and what they believe in," he said. "It's much easier to reject it out of hand, and not worry about it. That way they don't have to confront their own beliefs."
"I think some people would rather ignore it than be challenged."
Schwortz emphasized that the science points to the Shroud being the burial cloth belonging to a man, buried according to the Jewish tradition after having been crucified in a way consistent with the Gospel. However, he said it is not proof of the resurrection – and this is where faith comes in.
"It's a pre-resurrection image, because if it were a post-resurrection image, it would be a living man – not a dead man," he said, adding that science is unable to test for the sort of images that would be produced by a human body rising from the dead.
"The Shroud is a test of faith, not a test of science. There comes a point with the Shroud where the science stops, and people have to decide for themselves."
(Story continues below)
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"The answer to faith isn't going to be a piece of cloth. But, perhaps, the answer to faith is in the eyes and hearts of those who look upon it."
When it comes to testifying to this meeting point between faith and science, Schwortz is in a unique position: he has never converted to Christianity, but remains a practicing Jew. And this, he says, makes his witness as a scientist all the more credible.
"I think I serve God better this way, in my involvement in the Shroud, by being the last person in the world people would expect to be lecturing on what is, effectively, the ultimate Christian relic."
"I think God in his infinite wisdom knew better than I did, and he put me there for a reason."
This article was originally published on CNA Aug. 4, 2015.