Roman Catechism 4.1

Chapter 4 — Part I: The Creed — Article II: And in Jesus Christ, His Only Son, Our Lord

Section 1. Advantages Of Faith In This Article — That wonderful and superabundant are the blessings which flow to the human race from the belief and profession of this Article we learn from these words of St. John: Whosoever shall confess that Jesus is the Son of God, God abideth in him, and he in God; and also from the words of Christ the Lord, proclaiming the Prince of the Apostles blessed for the confession of this truth: Blessed art thou, Simon Bar-Jona: for flesh and blood hath not revealed it to thee, but my Father who is in heaven. For this Article is the most firm basis of our salvation and redemption.