23 Further, according to their fictitious opinions, the literal sense of Holy Scripture and its explanation, carefully worked out under the Church's vigilance by so many great exegetes, should yield now to a new exegesis, which they are pleased to call symbolic or spiritual. By means of this new exegesis of the Old Testament, which today in the Church is a sealed book, would finally be thrown open to all the faithful. By this method, they say, all difficulties vanish, difficulties which hinder only those who adhere to the literal meaning of the Scriptures.
Source: Humani Generis (Vatican.va)