Revelation 2:14-16

2:14 But I have a few things against you: You have some people there who follow the teaching of Balaam, who instructed Balak to put a stumbling block before the people of Israel so they would eat food sacrificed to idols and commit sexual immorality. 2:15 In the same way, there are also some among you who follow the teaching of the Nicolaitans. 2:16 Therefore, repent! If not, I will come against you quickly and make war against those people with the sword of my mouth.