Revelation 2:12-17 - The Letter To The Church In Pergamum
12 And to the angel of the church in Pergamos, write, "THESE things, saith he, who hath the sharp sword with two edges, 13 I know thy works, and where thou dwellest, even where the throne of satan is: thou maintainest my name, and hast not renounced your faith in me, even at a time when Antipas my faithful martyr was slain among you, where Satan dwells. 14 but I have a few things against thee, because thou hast there those that hold the doctrine of Balaam, who counselled Balac to ensnare the children of Israel, to eat things sacrificed to idols, and to commit fornication. 15 you have likewise those that hold the doctrine of the Nicolaitans, which I hate. 16 repent; or else I will come unto thee quickly, and will fight against them with the sword of my mouth.
17 he that hath an ear, let him hear what the spirit saith unto the churches: to him that overcometh, will I give to eat of the hidden manna, and will give him a white stone, and in the stone a new name written, which no man understands, except he that receives it."