1 Corinthians 10:20

No, but I say that the things which the Gentiles sacrifice, they sacrifice to demons and not to God; and I do not want you to become sharers in demons.

Revelation 9:20

The rest of mankind, who were not killed by these plagues, did not repent of the works of their hands, so as not to worship demons, and the idols of gold and of silver and of brass and of stone and of wood, which can neither see nor hear nor walk;

Leviticus 17:7

They shall no longer sacrifice their sacrifices to the goat demons with which they play the harlot. This shall be a permanent statute to them throughout their generations.”’

Deuteronomy 32:16-17

They made Him jealous with strange gods;
With abominations they provoked Him to anger.

2 Chronicles 11:15

He set up priests of his own for the high places, for the satyrs and for the calves which he had made.

Psalm 106:37-39

They even sacrificed their sons and their daughters to the demons,

2 Corinthians 4:4

in whose case the god of this world has blinded the minds of the unbelieving so that they might not see the light of the gospel of the glory of Christ, who is the image of God.

Treasury of Scripture Knowledge

Summary

But I say, that the things which the Gentiles sacrifice, they sacrifice to devils, and not to God: and I would not that ye should have fellowship with devils.

Bible References

Sacrifice

Leviticus 17:7
They shall no longer sacrifice their sacrifices to the goat demons with which they play the harlot. This shall be a permanent statute to them throughout their generations.”’
Deuteronomy 32:16
They made Him jealous with strange gods;
With abominations they provoked Him to anger.
2 Chronicles 11:15
He set up priests of his own for the high places, for the satyrs and for the calves which he had made.
Psalm 106:37
They even sacrificed their sons and their daughters to the demons,
2 Corinthians 4:4
in whose case the god of this world has blinded the minds of the unbelieving so that they might not see the light of the gospel of the glory of Christ, who is the image of God.
Revelation 9:20
The rest of mankind, who were not killed by these plagues, did not repent of the works of their hands, so as not to worship demons, and the idols of gold and of silver and of brass and of stone and of wood, which can neither see nor hear nor walk;