Revelation 2:14

Nevertheless, I have a few things against you, that you have there, them who hold the doctrine of Balaam, who taught Balak to cast a stumbling block before the children of Israel, to eat things sacrificed to idols, and to commit fornication.

Revelation 2:20

Nevertheless, I have against you, that you permit that woman Jezebel, who says that she is a prophetess, to teach and to seduce my servants to commit fornication, and to eat things sacrificed to idols.

Revelation 13:14-18

and it deceives the inhabitants of the earth by signs which it is given it to do before the beast; commanding the inhabitants of the earth to make an image of the beast that had the wound of the sword, and lived.

Treasury of Scripture Knowledge

Summary

Then said he unto the disciples, It is impossible but that offences will come: but woe unto him, through whom they come!

Bible References

It is

Revelation 2:14
Nevertheless, I have a few things against you, that you have there, them who hold the doctrine of Balaam, who taught Balak to cast a stumbling block before the children of Israel, to eat things sacrificed to idols, and to commit fornication.
Revelation 13:14
and it deceives the inhabitants of the earth by signs which it is given it to do before the beast; commanding the inhabitants of the earth to make an image of the beast that had the wound of the sword, and lived.