Kamala ji, you say because the gods and goddesses of other cultures aren't mentioned in bani that they are not important, but the question was do they exist per your understanding?
I would say they are not in bani because the authors never heard about them. I'm not sure too many people were talking about Thor, Isis, Hekate or Cernunnos (that ones for Sian ji, hehe) during the time of our Guru Sahiban. Most regular people would have heard it as babble.
But the Norse gods are the gods of my ancestors, so sometimes I wonder if Hindu gods existed, why not the Norse gods then? Why not any of the old gods of any ancient culture?
lol, okay but the Sri Guru Granth Sahib ji also has some persian in it and other languages mixed in it that aren't even Punjabi or any languages close to the area, if they added those languages in, you would THINK that the Guru ji would also add info on the Assyrian gods, but nope, the Guru ji did not because they are not important. Also the Guru ji made the Sri Guru Granth Sahib ji for everyone, not just people in the Indian Plateau!