Jet Engine vs. Reciprocal Engine
The point: Parents must cautiously, hopefully, and prayerfully await the emergence of a fixed disposition of Christian graces and commitment in their children, rather than focusing on a precise conversion time.
This analogy distinguishes between a jet engine, where the exact moment internal power takes over from external starting force is unknown, and a reciprocal engine, where the firing of pistons is immediately evident. It illustrates that in Christian nurture, the precise moment saving grace is implanted is usually unknown, unlike a crisis conversion.
And what I would say is this as we come now you remember my illustration about the jet engine and the reciprocal engine and that seemed to help many of you that when the jet engine is being started by an external force and the turbine is being turned at some point it fires and begins to operate under its own internal energy but we can't mark the place when we're sitting there in the place in the plane but when it's cruising at 30,000 we know that somewhere along the line it flamed unless there's been a flame out whereas the old piston reciprocal gas fired engine the moment one of those pistons...
16:07 - 17:37 Read in full sermon