Heidelberg Catechism

Question 54. What do you believe concerning the “holy catholic church” of Christ?
Answer: I believe that the Son of God (a) from the beginning of the world to the end, (b) gathers, defends, and preserves for himself, (c) by his Spirit and word, (d) out of the whole human race, (e) a church chosen to everlasting life, (f) unified in the true faith; (g) and that I am and forever will remain, (h) a living member of it. (i)
(Scriptural proofs after the fold.)