Christians Against Poverty (CAP) reports more than one-in-four of its clients have secured employment through the meetings which first started in 2013.
Speaking to Premier Christian Radio, Gareth Thomas from the Partnership Phone Team at CAP said: "[Clients] find that they're not being condemned, they're not being judged, there are not sanctions, there is no looming pressure over them.
"What they're [finding] is that they are coming in and they are being encouraged.
"They are having their hopes lifted, they are refinding their motivation and people are just coming alongside them and say 'You can do this'."
Jobless for four months after a contract ended, father-of-two Deepak Rakhra from Glasgow attended an eight-week course at a CAP Job Club at Pollokshaws Methodist Church.
He said: "There were sessions on overcoming obstacles and being confident in ourselves and our abilities; I learned the kind of language to use when speaking to employers and how to be prepared for interviews rather than just winging it!
"With the help I got from CAP, I managed to get a job in a call centre, but ironically I was then offered a position at my old workplace which I ultimately accepted. I definitely wouldn't be in this position if it hadn't been for the job club."
CAP says the work of its Job Clubs stands as a "testament" to the work of the Church nationwide and it is appealing for more churches to help them open more than 500 more clubs by 2021.
Head of CAP Job Clubs, Paul Archer, said: "Deepak's story is one of many successes for CAP Job Clubs since its launch in 2013.
"A thousand more people in work means more families in a better situation financially and fewer mental health problems triggered by unemployment."