Heidelberg Catechism – Lord’s Day 21
Q. What do you believe concerning the “Holy Catholic Church”?
A. I believe that, from the beginning to the end of the world, and from among the whole human race, the Son of God, by his Spirit and his Word, gathers, protects, and preserves for himself, in the unity of the true faith, a congregation chosen for eternal life. Moreover, I believe that I am and forever will remain a living member of it.
Q. What do you understand by “the communion of saints”?
A. First, that believers one and all, as partakers of the Lord Christ, and all his treasures and gifts, shall share in one fellowship. Second, that each one ought to know that he is obliged to use his gifts freely and with joy for the benefit and welfare of other members.
Q. What do you believe concerning “the forgiveness of sins”?
A. That, for the sake of Christ’s reconciling work, God will no more remember my sins or the sinfulness with which I have to struggle all my life long; but that he graciously imparts to me the righteousness of Christ so that I may never come into condemnation.