Friends of Russell Wolfe—one of the founders of Christian film production company Pure Flix Entertainment—asked for prayers and financial help for on fundraising site Crowdrise this week.

Wolfe was diagnosed with Amyotrophic Lateral Sclerosis (ALS), also known as motor neurone disease, in December 2013, and has amassed over $390,000 in medical costs. The campaign hopes to raise $500,000 for the family.

The 49-year-old was part of the team that brought the hit film "God's Not Dead" to theatres last year, and it is Wolfe's faith that sustains him through his trials.

"Over the past 14 months, I've lost the majority of my ability to speak clearly, use my legs, arms, or my hands," read signs held by Wolfe in a Facebook video. "In short, I've lost the ability to care for my most basic needs.

"One thing I have not lost is my faith," his message continued. "It's stronger than ever before."

Wolfe, who has two children with his wife, Alysoun, will continue to incur expenses as he undergoes physical therapy, in-home health care, surgeries, and experimental treatments. The family also requires home renovations to accommodate Wolfe's limitations, a customised van, and other expensive items like an elevator.

In addition to asking for donations, Wolfe's friends asked that people intercede for the family.

"Please Pray—that God will use this for good, and that God will provide strength and protection to this amazing family as they journey through this storm and beyond," they wrote on Crowdrise.

Wolfe affirmed that he believes in miracles.

"I believe for complete healing," a sign read. "I believe in the power of prayer. I believe that God's not dead!"

The producer's Facebook video has been shared more than 34,000 times, and more than $30,000 has been raised. Donations can be made here.