Revelation 2:14-16

“But I have a few things against you: You have some there who follow the teaching of Balaam. He taught Balak how to cause the people of Israel to sin by eating food offered to idols and by taking part in sexual sins. You also have some who follow the teaching of the Nicolaitans. So change your hearts and lives. If you do not, I will come to you quickly and fight against them with the sword that comes out of my mouth.