1 Corinthians 10:20
But I say, that the things that the nations sacrifice, they sacrifice to demons, and not to God. I do not want you to have fellowship with demons.
Revelation 9:20
The rest of the men who were not killed by these plagues did not repent of the works of their hands. They did not stop worshipping demons, and idols of gold, and silver, and brass, and stone, and of wood: which neither can see, nor hear, nor walk.
Leviticus 17:7
The people must stop sacrificing to goat idols (demons) and chasing after them as though they were prostitutes. This is a long lasting law for the people and for future generations.
Deuteronomy 32:16-17
They made God furious because they worshiped foreign gods and angered him (stirred up his zeal) because they worshiped worthless idols.
2 Chronicles 11:15
As an alternative, Jeroboam appointed his own priests for the illegal worship sites and the goat and calf statues he had made as idols.
Psalm 106:37-39
They sacrificed their sons and daughters to demons.
2 Corinthians 4:4
The god of this age (world) (religious, social, political, and economic arrangement) has blinded the minds of unbelievers that the light of the good news of the glory of Christ, who is the image of God, should not shine on them.