MIAMI, Florida (CNN)  -- You don't expect to hear an electric saw in church, but Kevin Cross uses the tool along with a frying pan, blender and toaster oven to help free people from debt.



Kevin Cross holds the boards steady as a woman uses a reciprocating saw to cut up her credit cards.



This money missionary helps people destroy those little plastic shovels, otherwise known as credit cards, that so many people have used to dig their way to financial ruin.



"It's such an easy message. It really is," says Cross, an ex-con who credits religion for his conversion from thief to money coach. "That's why it doesn't take a rocket scientist, it doesn't take a CPA to do it. A first-year bookkeeper can figure out that you can't spend more than you make," he said.



Earlier this month, Cross spoke to about 150 people at the Miami Vineyard Community Church where Kevin Fischer is the pastor.



"You've got to plan your spending; you've got to give back a part to God. You've got to save for the future, and you've got to learn to be content," said Fischer.



Fischer says the pressure of money and debt is enormous on people, especially more recently.



"We should change the marriage vows from 'till death do us part' to 'debt do us part' because that's what's going on, and it's so true," he said.



Cross is breathless. As he speaks to the crowd, he's a non-stop, doesn't-come-up-for-air, high-octane money missionary.



He uses Christian principles, prayer, common sense, and a few good one-liners to get his message across.



"I had a 401k, it went to a 201k, went to 101k, now it's just K," he said as the crowd laughs. "I'm thinking I got a thousand bucks left, and I can retire for about a week."



Cross presides over a day-long sermon on how people can make their lives better by taking control of their spending. He says he tries to demonstrate the long-term effects of irresponsible borrowing. Simple stuff, he says, will make people more content and give them the cushion necessary to give back.



His new book is "Building Your Financial Fortress in 52 Days."



"I want to get people to have more margin, so instead of investing in stuff, and stuff that doesn't last, they can invest in people's lives," he said.



The tools he uses to hammer home his message go beyond his overhead TV screens, charts and calculators. Cross invites his guests, who pay $25 a head to hear his message, to come up to the front of the room for what he calls the beginning of "freedom."



On a table, sit a frying pan, a toaster oven, a blender and a wooden sawhorse and an electric saw. About six people cut up their credit cards and bake them in the toaster oven as if they were TV dinners.



Others sliced and diced their Visa, MasterCard and Amex, before mixing the pieces with Spam in the blender.



At one point, Cross called for some cooking oil as one lady stood over her credit card-saute with a spatula.



Holding a plate full of the little pieces of credit card, Cross said, "This looks like a melted credit card, but this really represents freedom in these people's lives, because it's the first step."



Cellie Mayol says she used to have 10 or 11 credit cards. She put on protective goggles, taped her cards to a two-by-four and shredded them with a reciprocating saw.



"It just felt like the right thing to do to get me started on the right path," she said. "The Sawzall [reciprocating saw] was exhilarating. I love that feeling."



Kevin Cross
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