Heidelberg Catechism: Questions 22-25

Question 22: What is then necessary for a Christian to believe?

Answer: All things promised us in the gospel, which the articles of our catholic undoubted Christian faith briefly teach us.

Question 23: What are these articles?

Answer:
I. I believe in God the Father, Almighty, Maker of heaven and earth:
II. And in Jesus Christ, HIS only begotten Son, our Lord:
III. Who was conceived by the Holy Ghost, born of the Virgin Mary:
IV. Suffered under Pontius Pilate; was crucified, dead, and burried:
V. The third day he rose from the dead:
VI. He ascended into heaven, and sitteth at the right hand of God the Father Almighty:
VII. From thence He shall come to judge the quick and the dead:
VIII I believe in the Holy Ghost:
IX. I believe in a holy Catholic church: the communion of saints:
X. The forgiveness of sins:
XI. The resurrection of the body:
XII. And the life everlasting. AMEN.

Question 24: How are these articles divided?

Answer: Into three parts; the first is of God the Father, and our creation; the second of God the Son, and our redemption; the third of God the Holy Ghost, and our sanctification.
Question 25: Since there is but one only divine essence, why speakest thou of Father, Son, and Holy Ghost?

Answer: Because God hath so revealed Himself in His word ,that these three distinct persons are the one only true and eternal God.