The gods of the nations are...

1 Cor. 10:20 "what pagans sacrifice, they sacrifice to demons." 

Whence this idea, St. Paul? Consider:

LXX 95 (our 96):5 "ὅτι πάντες οἱ θεοὶ τῶν ἐθνῶν δαιμόνια ὁ δὲ κύριος τοὺς οὐρανοὺς ἐποίησεν" 

Tipped off to this from the Vulgate, which reproduces it faithfully: Quoniam omnes dii Genitum daemonia: Dominus autem coelos fecit." 

All the gods of the gentiles are demons (Gk, Lat.) but the Lord made the heavens.