- The Talmud (Megila 9) mentions that according to the opinion that allows a Sefer Torah to be written in aramaic, the reason is because it says יפת אל' ליפת which means G-d glorified יפת by making his language holy. On the other hand the Talmud (Sota 33) teaches that one who is not praying with a quorum should not pray in Aramaic because the angels do not understand,
Tosafot st(Shabbos 12) asks that how could it be they don't understand if they know even a persons thoughts? The Rosh answers that of course angels understand Aramaic, but rather they don’t want to listen or deal with Aramaic because it is a repellent language.
Horav Menashe Klein Zt”l, (Mishne Halochos 13; 147), explains based on the Kuzari that teaches how Avrohom Avinu would speak in aramaic whenever he needed to discuss mundane matters, and in לשון הקודש for all holy matters ) why Adam spoke in aramaic and not (לשון הקודש) because he did not want to use the such a holy language for mundane matters.
Yet the Rema (120) quotes the Bereshis Rabah that says one should respect Aramaic Torah like we see Hashem respected it by using it in the Torah itself.
Rabbi A. Bartfeld as revised by, Horav Yaakov Hirschman, Horav Dovid Pam, Horav Aharon Miller, Horav Chanoch Ehrentreu and Horav Kalman Ochs Shlit'a