Bear Grylls is a Christian and ambassador for the alpha course and is best known for presenting shows about surviving in the wilderness.
He will release his book 'Soul Fuel' in July next year, which will be published by Hodder Faith, who produce the American preacher Tim Keller's books and Home For Good founder Dr Krish Kandiah's Faitheism.
Bear Grylls has been open about his faith, telling the Radio Times in 2015: "I try to start every day by kneeling down and saying, 'Lord Jesus, I ain't got it all right, and I'm nervous about today.
"I will give it my all, but will you help me? It's never more complicated than that. I probably don't go to church enough, but my faith is a quiet, strong backbone in my life, and the glue to our family."
Grylls was also a contributor to the recent Harper Collins publication In This Light: Thoughts for Christmas, a collection of musings by the Archbishop of Canterbury from people across the faith world, public life and people with remarkable stories.
According to Christian publishers Zondervan, who are publishing the book in America, the 'Soul Fuel' will "share some of his most exciting exploits and the spiritual insights he gained along the way in his first faith-focused book, a unique 365-day devotional.
"Each section explores a theme Bear has lived, including purpose, courage, freedom, and risk."
Writing in his own autobiography Mud, Sweat and Tears, Grylls spoke of how he found his faith again and about his journey since then: "To me, my Christian faith is all about being held, comforted, forgiven, strengthened, and loved - yet somehow that message gets lost on most of us, and we tend only to remember the religious nutters or the God of endless school assemblies.
"This is no one's fault, it is just life. Our job is to stay open and gentle, so we can hear the knocking on the door of our heart when it comes. The irony is that I never meet anyone who doesn't want to be loved or held or forgiven. Yet I meet a lot of folk who hate religion. And I so sympathise. But so did Jesus. In fact, He didn't just sympathise, He went much further. It seems more like this Jesus came to destroy religion and to bring life."
Watch Bear Grylls speaking to alpha founder and HTB leader Nicky Gumbel in 2009:
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