Revelation 2:14-15 (New International Version)

¹⁴Nevertheless, I have a few things against you: You have people there who hold to the teaching of Balaam, who taught Balak to entice the Israelites to sin by eating food sacrificed to idols and by committing sexual immorality. ¹⁵Likewise you also have those who hold to the teaching of the Nicolaitans.