Revelation 2:12-17 (CSB)
12 “Write to the angel of the church in Pergamum: Thus says the one who has the sharp, double-edged sword: 13 I 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. 14 But 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. 15 In the same way, you also have those who hold to the teaching of the Nicolaitans. 16 So repent! Otherwise, I will come to you quickly and fight against them with the sword of my mouth.
17 “Let anyone who has ears to hear listen to what the Spirit says to the churches. To the one who conquers, I will give some of the hidden manna., I will also give him a white stone, and on the stone a new name is inscribed that no one knows except the one who receives it.

Christian Standard Bible (Nashville, TN: Holman Bible Publishers, 2020), Re 2:12–17.