Believer's Response to the Blasphemy Challenge

I have a lot of free time on my hands at work and so I'm constantly checking msnbc or abc for news of some natural disaster, political scandal, or Britney blunder. However, I came across an article today on abcnews.com that left me speechless.

An excerpt from "The Blasphemy Challenge: Host of Internet Challenge says God Most Likely Doesn't Exist":

Brian and Kelly are co-founders of the Rational Response Squad. From Brian's basement they broadcast a weekly Internet radio show about God…or the lack thereof. And recently they came up with a new way to publicize their cause. It is called the Blasphemy Challenge.

"Initially we wanted to find a way to allow atheists to come out of the closet, speak up and show other people that there are people that think like this," Brian says.

What they did was challenge people to make videos of themselves, denying, denouncing or blaspheming the Holy Spirit, and then post them on YouTube.'We Are Not Scared of This Unforgiveable Sin'

"We wanted to do it in such a way where we stripped the power from religious institutions that instill fear in people," says Brian. "And we did that by blaspheming the Holy Spirit, by showing that we are not scared of this unforgiveable sin."

A passage in Mark 3:29 reads, "whoever blasphemes against the Holy Spirit will never be forgiven; he is guilty of an eternal sin."

While the passage is open to interpretation, the Rational Response Squad is taking it literally and challenging people to gamble with their eternal souls. So far more than 800 people have taken up the challenge.

As a believer, I'm shocked at saddened at their audacity and what that says about this fallen world. Yet I'm also left wondering how to properly respond as a follower of Christ. I'm saddened that the inflammatory nature of their project will (probably) incite equally inflammatory critiques and damnations to hell from the religious leaders asked to comment. I feel strongly that these are the very people Christ came for, yet how do I reach out in love towards those so steeped in darkness without compromising the light of truth? I wish I knew the answer...

"Therefore God exalted him to the highest place and gave him the name that is above every name, that at the name of Jesus every knee should bow, in heaven and on earth and under the earth, and every tongue confess that Jesus Christ is Lord, to the glory of God the Father." Philippians 2.9-11