Jude 1:11
Alas for them! for they have gone in the way of Cain, and have run evidently in the error of Balaam's hire, and have perished in the rebellion of Korah.
2 Peter 2:15
having forsaken the right path, they have wandered, following in the way of Balaam, the son of Bosor, who loved the wages of iniquity,
1 John 3:12
Not being of the wicked one, as Cain was, who slew his brother. And on account of what, did he slay him? Because his own works were wicked, and his brother's righteous.
Revelation 2:14
Nevertheless, I have a few things against you, that you have there, them who hold the doctrine of Balaam, who taught Balak to cast a stumbling block before the children of Israel, to eat things sacrificed to idols, and to commit fornication.