Who claimed that in the Garden of Eden God spoke Swedish Adam Danish?

That's a humorous saying! There is no record of anyone claiming God spoke Swedish to Adam or Danish to Eve in the Garden of Eden.

This saying likely plays on the common perception that Scandinavians speak languages that are perceived as harsh or guttural. It's a playful and somewhat stereotypical way to imagine how a conversation between God and Adam and Eve might have sounded.

There's no historical or linguistic evidence to support this claim. The Bible doesn't specify what language God spoke to Adam and Eve, nor does it offer any clues about the origins of languages.