Heidelberg Catechism – Lord’s Day 23
Q. But how does it help you now that you believe all this?
A. That I am righteous in Christ before God, and an heir of eternal life.
Q. How are you righteous before God?
A. Only by true faith in Jesus Christ. In spite of the fact that my conscience accuses me that I have grievously sinned against all the commandments of God, and have not kept any one of them, and that I am still ever prone to all that is evil, nevertheless, God, without any merit of my own, out of pure grace, grants me the benefits of the perfect expiation of Christ, imputing to me his righteousness and holiness as if I had never committed a single sin or had ever been sinful, having fulfilled myself all the obedience which Christ has carried out for me, if only I accept such favor with a trusting heart.
Q. Why do you say that you are righteous by faith alone?
A. Not because I please God by virtue of the worthiness of my faith, but because the satisfaction, righteousness, and holiness of Christ alone are my righteousness before God, and because I can accept it and make it mine in no other way than by faith alone.