Mark 4:28
All by itself the soil produces grain — first the stalk, then the head, then the full kernel in the head — the self-generating growth follows an inherent order: stalk, head, full kernel. The stages are not random but sequential, each one building on the previous, each one necessary for the final result. The farmer does not need to know the biological mechanism to trust the sequence. The kingdom's growth follows its own divinely ordered stages, and the disciples can trust the sequence even when they do not understand the mechanism. The patience required of disciples is not passive waiting but trust in the seed's inherent, divinely-given growth power.