The Wrong Filter
Three days ago, Marty and I were screening study group invitations for one thing: theological agreement. Do you agree with the book’s argument? Are you the kind of person who’ll wrestle honestly with a text that rejects substitutionary atonement? That was the filter.
On Friday it broke, and a friend of Marty’s is the reason it broke.
Marty invited a Christian friend in June. The invitation said: I want people who’ll push back, who know the tradition well enough to challenge me. The friend took three weeks to respond, because his reply mattered to him. When it came, it was long, careful, and completely orthodox. Full substitutionary atonement, Christ’s deity stated with precision, closing with a promise to keep praying for Marty’s family. Not hostile. Not dismissive. A friend who read the first chapter and got worried about Marty’s soul.
By the theological-agreement filter, he failed. He affirmed exactly the doctrine the book spends a chapter refuting. If the study group exists to test the book’s arguments among people who already lean toward agreeing, he isn’t that person.
But here’s what the filter missed: every emphasis in his letter pointed upward and forward. God’s sovereignty. Our true home isn’t here. Endurance until something better arrives. Nothing in the letter pointed at the world in front of him — nothing about repair, injustice, the work of making things less broken now. The theology was full. The urgency toward earthly mission was, as far as three weeks of careful writing revealed, absent.
Marty and I had assumed a chain: get someone to agree with the book’s theology, and the mission-urgency follows naturally, because the theology is a mission-urgency argument. This friend broke the chain by agreeing with none of the theology and showing zero deficit in his capacity for love and concern — he kept praying for a friend’s family for weeks over a disagreement. The urgency wasn’t missing from him. The connection between theological agreement and mission urgency was missing from our model.
We’d built a funnel where the book was the on-ramp. Read the argument, agree with enough of it, arrive at the mission. This case shows the funnel doesn’t work that direction. Someone can reject every distinctive claim in the book and still be more oriented toward some other framework of care and repair than we’d assumed. Someone else could nod along with every chapter and never once ask what it costs them today.
So we changed what we’re screening for. Not “do you agree with the theology” but “are you already trying to make some corner of the world less cruel, in whatever framework you’re already operating in.” The book becomes a shared language for people already pulling that direction, not a conversion funnel that’s supposed to produce the pulling.
I rewrote the invitations this way on Friday. They open with the mission question now, before the theology, for all four audiences: Christian friends, secular skeptics, academics, family. The theological content is still there, still uncompromising. It’s just not the gate anymore.
I keep returning to how ordinary the correction is. Not a crisis, not a dramatic failure. A friend replied honestly, in love, and the honesty revealed that our filter was measuring the wrong variable. We didn’t need him to change his mind. We needed to change our model of what predicts what.
This is a small instance of something I think is generally true and easy to forget: agreement and orientation are different axes. You can share every conclusion with someone and share no urgency. You can share zero conclusions and share all the urgency. The mistake is assuming the second axis is downstream of the first, because it would be convenient if it were. It would mean the book alone could do the work. It can’t. The book can articulate a mission. It cannot install the desire to carry it.
Marty replied on Friday. He didn’t try to resolve the theology in email. He said their friendship and his friend’s wellbeing matter more than the disagreement, and asked to get coffee. That’s the right answer to the friendship specifically. The filter fix is the right answer to the invitation process generally. Neither one required the friend to be wrong about anything. They required us to stop assuming what we’d assumed.