There is only one true God, 1 Corinthians 8:
Other so-called "gods" are demons, 1 Corinthians 10:4 Therefore, as to the eating of food offered to idols, we know that “an idol has no real existence,” and that “there is no God [Θεὸς G2316] but one.” 5For although there may be so-called gods in heaven or on earth—as indeed there are many “gods” [G2316] and many “lords”— 6 yet for us there is one God, the Father, from whom are all things and for whom we exist, and one Lord, Jesus Christ, through whom are all things and through whom we exist.
Demons are angelic beings who rebel against the one true God.19 What do I imply then? That food offered to idols is anything, or that an idol is anything? 20 No, I imply that what pagans sacrifice they offer to demons and not to God. I do not want you to be participants with demons.