Magisterium

19. How is Sacred Scripture to be read?
109-119
137
Sacred Scripture must be read and interpreted with the help of the Holy Spirit and under the guidance of the Magisterium of the Church according to three criteria: 1) it must be read with attention to the content and unity of the whole of Scripture; 2) it must be read within the living Tradition of the Church; 3) it must be read with attention to the analogy of faith, that is, the inner harmony which exists among the truths of the faith themselves.            
20. What is the Canon of Scripture?
120
138
The Canon of Scripture is the complete list of the sacred writings which the Church has come to recognize through Apostolic Tradition. The Canon consists of 46 books of the Old Testament and 27 of the New.
21. What is the importance of the Old Testament for Christians?
121-123 

Christians venerate the Old Testament as the true word of God. All of the books of the Old Testament are divinely inspired and retain a permanent value. They bear witness to the divine pedagogy of God's saving love. They are written, above all, to prepare for the coming of Christ the Savior of the universe.