Heidelberg Catechism – Lord’s Day 32
Q. Since we are redeemed from our sin and its wretched consequences by grace through Christ without any merit of our own, why must we do good works?
A. Because just as Christ has redeemed us with his blood he also renews us through his Holy Spirit according to his own image, so that with our whole life we may show ourselves grateful to God for his goodness and that he may be glorified through us; and further, so that we ourselves may be assured of our faith by its fruits and by our reverent behavior may win our neighbors to Christ.
Q. Can those who do not turn to God from their ungrateful, impenitent life be saved?
A. Certainly not! Scripture says, “Surely you know that the unjust will never come into possession of the kingdom of God. Make no mistake: no fornicator or idolater, none who are guilty either of adultery or of homosexual perversion, no thieves or grabbers or drunkards or slanderers or swindlers, will possess the kingdom of God.”