Revelation 2:12-15

“And to the angel (divine messenger) of the church in Pergamum write: T hese are the words of Him who has and wields the sharp two-edged sword [in judgment]: ‘I know where you dwell, [a place] where Satan sits enthroned. Yet you are holding fast to My name, and you did not deny My faith even in the days of Antipas, My witness, My faithful one, who was killed (martyred) among you, where Satan dwells. But I have a few things against you, because you have there some [among you] who are holding to the [corrupt] teaching of Balaam, who taught Balak to put a stumbling block before the sons of Israel, [enticing them] to eat things that had been sacrificed to idols and to commit [acts of sexual] immorality. [Num 25:1, 2; 31:16] You also have some who in the same way are holding to the teaching of the Nicolaitans.