

Ep. 42 / Can Ancient Flames Ignite Modern Faith? ► Byron Klaus
Dr. Byron Klaus invites us into a fascinating exploration of Pentecostalism's remarkable journey from the margins to becoming the largest segment of global Protestantism. As former president of the Assemblies of God Theological Seminary and a respected Pentecostal scholar, Klaus brings both academic insight and personal experience to this conversation about a movement that has fundamentally reshaped Christianity worldwide.
We begin by tracing Pentecostalism's origins to the "theological winds" of the 19th century Holiness and Keswick movements, which created a hunger for deeper spiritual experience. These currents culminated in what Klaus calls "combustion points" - most famously at Azusa Street in 1906 Los Angeles, but also through numerous immigrant communities across North America. What made early Pentecostalism distinctive was its emergence among "the marginalized, the disenfranchised, people who lived at the edges of society," who found in Spirit-filled faith a source of hope and empowerment.
Dismissed by established churches, early Pentecostals formed separate communities centered on biblical authority and spiritual experience. Klaus candidly discusses both the movement's strengths and its "Achilles heel" - a tendency to follow charismatic personalities who become the movement's focal point. He also addresses contemporary challenges, particularly the political polarization affecting American churches, noting his own journey toward becoming "increasingly apolitical" as he recognizes that no political vision truly aligns with God's kingdom priorities.
The conversation turns global as Klaus explains why Pentecostalism became what Harvey Cox called "a religion made to travel" - a spiritual seed that could be planted in any culture and flourish through the Spirit's power. With his denomination counting just 3 million adherents in America but 80 million worldwide, Klaus speaks from firsthand observation about how Pentecostalism's adaptability has fueled Christianity's explosive growth across Africa, Asia, and Latin America.
For Western believers, Klaus suggests humility in learning from Global South Christians who demonstrate "the vibrancy of Christianity in the middle of suffering" - maintaining profound faith amid material lack, persecution, and uncertainty. His advice for future leaders emphasizes avoiding overconfidence, building cross-generational relationships, and developing strong theological foundations.
You can learn more from Byron Klaus through his website and published works.
And don't forget to share this episode using hashtag #Evangelical360 and join the conversation online!
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