Anyone who thinks sitting in church can make you a Christian must also think that sitting in a garage can make you a car.

The quip uses a deliberately absurd analogy to argue that identity and moral/spiritual transformation are not produced by mere proximity to an institution. Just as a garage is associated with cars but does not confer “car-ness” on a person who sits in it, a church building and attendance alone do not automatically confer Christian character. The underlying point is a classic critique of nominal or performative religiosity: faith is understood as lived practice, inward conviction, and ethical action rather than a label gained through ritual participation. The humor sharpens the rebuke while making it memorable and easily repeatable in debates about religion and authenticity.