They have their own LANGUAGE,
if you will.
The Big Bang Theory Season 1, Episode 6
(ALL SINGING
IN FOREIGN LANGUAGE)
Vikings Season 1, Episode 2
(ALL PRAYING IN
FOREIGN LANGUAGE)
Vikings Season 1, Episode 2
[IN ALIEN LANGUAGE]
The Big Bang Theory Season 8, Episode 21
How do you speak our LANGUAGE?
Vikings Season 1, Episode 2