Here is an interesting and very Catholic commentary on the idea of using the vernacular in the Mass, from one of my favorite books on the Mass, The Holy Sacrifice of the Mass by Fr. Nicholas Gihr, written in 1902:
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The very ancient practice of the Church of celebrating Mass in the West, not in the living language of the country, but in a dead language, that is, in Latin, for the most part a language unintelligible to the people, has since the twelfth century to the present epoch been frequently made the subject of attack. [footnote, which says: Opponents of the Latin language of worship were, as a rule, heretics, schismatics and rationalistic Catholics; for example, the Albigensians, the so-called Reformers, the Jansenists, the Gallicans, the Josephites, the so-called German and the Old Catholics.] Such attacks originated principally in an heretical, schismatical, proudly national spirit hostile to the Church, or in a superficial and false enlightenment, in a shallow and arid rationalism entirely destitute of the perception and understanding of the essence and object of the Catholic liturgy, especially of the profoundly mystical sacrifice. In the attempt to suppress the Latin language of the liturgy and to replace it by the vernacular, there was a more or less premeditated scheme to undermine the Catholic unity, to loosen the bond of union with Rome, to weaken the Catholic spirit, to destroy the humility and simplicity of faith. Therefore, the Apostolic See at all times most persistently and inflexibly resisted such innovations; for it is an invariable principle of the Church never to alter the ancient liturgical language, but inviolably to adhere to it, even though it be no longer the living language spoken or understood by the people.
EDIT: typo
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Topic: What do you believe about the New Mass? (Read 2017 times)