As a Norwegian, I recognized some of the words (which had a northern dialect of some sort), but as others were hidden in the voice pitch, I couldn't manage to make them out as a coherent sentence.
None of the Sami language is known to me, but I wouldn't rule that out.
..."you'll soon find Ornn"
"...skal du finne Ornn"
Was what I made out.
https://www.youtube.com/watch?v=e47AEBnu9SQ https://cdn.discordapp.com/attachments/293500383769133056/343466050068807680/image.png
And another word; "blive". I can feel my brain scrambling to find the language that contains that word... Considering the context, I suspect it's the translated "shall soon".
And the last part of the first verse:
"And you'll know, you're nearing Ornn"
"Og du vet, du nærmer Ornn"
The above doesn't really make sense (I suspect poetic liberties on the grammar has been taken), because "du nærmer Ornn" literally translates as "you nearing Ornn". Skipping the "you are nearing".
Not that I care about the grammar, I just really, really, REALLY want to know the "behind the scenes" on the language(s) used!
My bet is on the Norse language. Similar words (synonyms) to what we use in the current every-day "modern" language, but the words themselves are rather ancient.