Glossolalia

[Adolf Bernhard Christoph] Hilgenfeld, indeed, is mistaken in explaining the unintelligibility of the γλω̑σσαι, only by the transcendent nature of what they expressed to the merely human consciousness; but he observes with great truth, that that which is common to prophecy and to glossolalia consisted in the exaltation of the consciousness above the merely human sphere, but that which is distinct consisted in this: that he who was prophetically inspired was in the full possession of his reflecting spiritual powers; […] [W]e showed that there is a human πνευ̑μα in a narrower sense, a capacity of immediate perception and insght. As all ecstasy, so also glossolalia was perfected in this πνευ̑μα: it was a miraculous agency of the Spirit of God […]

The occurrence in Acts ii. is therefore to be recognised, according to its historical import, as the phenomenon of the glossolalia, (not as a higher stage of it, in which the foreign languages supervened, Olshausen), which emerged for the first time in the Christian church, and that immediately on the effusion of the Spirit at Pentecost,—a phenomenon which, in the sphere of the marvellous to which it belongs, was elaborated and embellished by legend into a speaking in foreign languages, and accordingly into an occurrence quite unique, not indeed as to substance, but as to mode[…], and far surpassing the subsequently frequent and well-known glossolalia, having in fact no parallel in the further history of the church.

But glossolalia by definition makes no such sense, because it consists of strings of syllables, made up of sounds taken from all those that the speaker knows, put together more or less haphazardly but emerging nevertheless as word-like and sentence-like units because of realistic, language-like rhythm and melody.

Lorenzo is still kneeling at the box, once more Luisa wipes her eyes, Violeta is sobbing and rocking, her glossolalia now at the -sə-sə-sə-level of near exhaustion.

Everything was a labyrinthine amalgam of languages, a towering Babel of puns and glossolalia.

People don’t tend to use sounds that aren’t in their native language. (citation) So if you’re an English speaker, you’re not going to bust out some Norwegian vowels. This rather lets the air out of the theory that individuals engaged in glossolalia are actually speaking another language.

As he indicated in the subtitle of his study, [Olivier] Flournoy regarded [Hélène] Smith's Martian as a kind of "glossolalia." In this category, he also included her "Hindu," "Ultra-Martian," and the other extraterrestrial tongues that she would later speak.