The real use and purpose of the formula (active and passive obedience) is to emphasize the two distinct aspects of our Lord’s vicarious obedience. The truth expressed rests upon the recognition that the law of God has both penal sanctions and positive demands. It demands not only the full discharge of its precepts but also the infliction of penalty for all infractions and shortcomings. It is this twofold demand of the law of God which is taken into account when we speak of the active and passive obedience of Christ. Christ as the vicar of his people came under the curse and condemnation due to sin and he also fulfilled the law of God in all its positive requirements. In other words, he took care of the guilt of sin and perfectly fulfilled the demands of righteousness. He perfectly met both the penal and the preceptive requirements of God’s law. The passive obedience refers to the former and the active obedience to the latter.