Revelation 2:14-17

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. Therefore repent [change your inner self—your old way of thinking, your sinful behavior—seek God’s will]; or else I am coming to you quickly, and I will make war and fight against them with the sword of My mouth [in judgment]. He who has an ear, let him hear and heed what the Spirit says to the churches. To him who overcomes [the world through believing that Jesus is the Son of God], to him I will give [the privilege of eating] some of the hidden manna, and I will give him a white stone with a new name engraved on the stone which no one knows except the one who receives it.’ [Ps 78:24; Is 62:2; 1 John 5:5]