The calling to be disciples of Christ is to have saving faith; If we believe the whole gospel, it will precisely translate into obedient faith; voluntary obedience will be evangelical or obedience to the glorious gospel; Notice that the gospel comes before obedience. Constant faith is the necessary instrument and not the likely cause of eternal salvation. When we have saving faith, we make a covenant with God. The pact upholds the conditions for membership. The condition represents repentance. To repent, we must turn to Christ, and we believe that He is our substitute for sin. He bore our sin and proved his righteousness.If we sincerely believe that Christ is the cause of our genuine faith, we will see that biblical faith is instrumental rather than causal. We can also explain our beliefs that justify belief.  

We are abundantly justified, declared with righteousness in heaven's independent judgment. Justification does not depend on what we rightly deserve. We are morally justified by divine grace when it is completely passive. He is fully active. We are justified by faith as a necessary instrument. Faith is not the cause of our justification, only the instrument.
If one condition were justified, we would be bound, but that righteousness of Christ represents another's righteousness. There is no way we can be morally obliged to adequately obtain His divine justice, so it counts accurately rather than properly fulfilled for our personal accounts. Attribution is only through divine grace; it does not depend on our voluntary obedience.We do not persist in constant belief in order to be amply justified; otherwise, we would never be justified. We don't need to get justice out of obligation.  

Repentance means turning away from our sin; only trust his righteousness; the special focus is not on the ability to morally justify ourselves when we do something, but on gracious acceptance and sincere trust in one's righteousness through faith. This is called evangelical repentance. Our generous profit. If we do, we will sincerely regret it. The moral obligation is to go to him alone at once. Through our protected knowledge in His work. Hence, that saving faith consists in sincerely repenting from our sin and receiving Christ with grace.