maggog and gog

Hey I was reading the bible recently and came across reference to magog and gog. Two demons that appear during the end of the world.

I was struck by the simerlarity between the demons and maggog and gog two giants that guard the city of London. Is there any link to this or is it just a coincidence?

[crunked]

Gog and Magog is sometimes interpreted as present day Russia and associated with the Armageddon. I suppose there are varying ideas about Gog.