Gods, plural. But believe is a weird word.
I commune with the ancient gods of my ancestors, whether I believe in them is complicated though. I spent most of my life atheist after the christian church failed to grab me. I learned of my ancestral religion from my great grandmother and my great aunt. Grandma was Catholic on paper but still recognized the old gods. My aunt called herself a druid.
I choose to commune with the old gods because I have to believe in something. I've felt the call of spirit, the gaping void in my heart where spirituality was meant to be, but I do not trust organized religion. I don't trust the churches. I don't trust those who would hold power, enforced by faith, over those who do not know better.