Re: A challenge!
One of the pre requisites to join Masonry is the belief in 'A Higher Being', so it does require a monotheistic belief.
It is open to all faiths.
Not to offend any of the faiths within the lodge, the God is called Great Architect of The Universe (GATOU).
Simply because I swore my oath in a predominatly Christian lodge, I swore it over the Bible, but in other contries, provinces or regions you swear over the appropriate book (Volume of Sacred Law VSL) so the Torah, Koran etc.....
Hope this helps.