IV. The Canon of Scripture

From The Catechism of the Catholic Church

129
Christians therefore read the Old Testament in the light of Christ crucified
and risen. Such typological reading discloses the inexhaustible content of the
Old Testament; but it must not make us forget that the Old Testament retains
its own intrinsic value as Revelation reaffirmed by our Lord
himself.¹⁰⁵ Besides, the New Testament has to be read in the light of
the Old. Early Christian catechesis made constant use of the Old
Testament.¹⁰⁶ As an old saying put it, the New Testament lies hidden in
the Old and the Old Testament is unveiled in the New.¹⁰⁷