Revelation 2:13-16

13I know where you live — where Satan’s throne is. Yet you are holding on to my name and did not deny your faith in me, even in the days of Antipas, my faithful witness who was put to death among you, where Satan lives.

14But I have a few things against you. You have some there who hold to the teaching of Balaam, who taught Balak to place a stumbling block in front of the Israelites: to eat meat sacrificed to idols and to commit sexual immorality.

15In the same way, you also have those who hold to the teaching of the Nicolaitans.

16So repent! Otherwise, I will come to you quickly and fight against them with the sword of my mouth.