The Catechism on Sacred Scripture - Sections 118 & 119

118 A medieval couplet summarizes the significance of the four senses [of Sacred Scripture]:

The Letter speaks of deeds; Allegory to faith; The Moral how to act; Anagogy our destiny.⁸⁷

119 "It is the task of exegetes to work, according to these rules, towards a better understanding and explanation of the meaning of Sacred Scripture in order that their research may help the Church to form a firmer judgment. For, of course, all that has been said about the manner of interpreting Scripture is ultimately subject to the judgement of the Church which exercises the divinely conferred commission and ministry of watching over and interpreting the Word of God."⁸⁸ 

But I would not believe in the Gospel, had not the authority of the Catholic Church already moved me.⁸⁹

87 Lettera gesta docet, quid credas allegoria, moralis quid agas, quo tendas anagogia; Augustine of Dacia, Rotulus pugillaris, I: ed. A. Walz: Angelicum 6 (1929) 256.
88 DV 12 § 3.
89 St. Augustine, Contra epistolam Manichaei, 5,6:PL 42,176.


Source: Catechism of the Catholic Church