[St_Thomas_Aquinas]

Basically, avoiding Latin aids in altering the Truth while sticking to Latin is a major force for keeping the Truth unchanging as it's passed down over generations.

That's true. The development of Latin as the language of the Church, and the fact that it's now a dead language, seems providential to me. We shouldn't refuse this gift.

[Luircin]

Then why Latin? Koine Greek is a dead language too, and it was the original language of the New Testament. Same with Ancient Hebrew, just that it was the original language of the Old Testament.