Therefore, since it is right for us to demonstrate obedience to our heavenly Father in all things, we should not shy away from any method by which He trains us in obedience. Yet, if we truly comprehend the necessity of obedience, we must also recognize the inherent inclination of our carnal nature to cast off the yoke of God whenever it is treated with even a hint of gentleness and indulgence. It is akin to the behavior of unruly horses that, when left idle for a few days in pasture and stable, become untamable and fail to recognize the rider whom they once obediently obeyed. Invariably, we fall into the very state that God laments in the people of Israel – growing fat and stubborn, kicking against the very One who has nurtured and cared for us (Deuteronomy 32: 15). Though the kindness of God should attract us to reflect upon and love His goodness, our inherent wickedness is such that we are easily corrupted by His leniency. Thus, it is not only necessary, but essential, for us to be restrained by discipline, lest we give in to petulance and rebellion.
John Calvin. On the Christian Life.
