The imagery is in our songs and catch phrases, this idea of being “on fire” for God. I don’t know when it first became popular in Christian circles—maybe during the Jesus Movement of the 1970s, maybe some other time.
Intertwining fire with faith not a new idea, of course. The disciples on the road to Emmaus said they felt their “hearts burning” as Jesus explained the scriptures to them (Luke 24:32). When the Holy Spirit came at Pentecost, tongues of fire rested on the disciples (Acts 2:2-4).
The Bible also speaks often of the “refiner’s fire”—the work of God that tests and shapes our faith and character. And God Himself is described as “a consuming fire” in Hebrews 12:29.
Even so, none of these have to do with that passionate, “on-fire” feeling frequently associated with youth camps and mountaintop experiences. I’m not denying such feelings exist—they’re real, valid and sometimes life-changing. But because they’re not necessarily sustainable, not having them can often be a source of guilt.