Jude 1:11

Wo unto them! for they have walked in the way of Cain, and have eagerly run in Balaam's erroneous path of hire, and have perished in opposition, like Corah.

Revelation 2:14

Yet I have a few things against thee, that thou hast there some who hold the doctrine of Balaam, who taught Balac to lay a stumbling-block before the children of Israel, to eat of idol sacrifices, and to commit whoredom.

2 Peter 2:15-16

who forsaking the strait road are gone out of the way, following the path of Balaam the son of Bosor who loved the wages of iniquity.

Treasury of Scripture Knowledge

Summary

He sent messengers therefore unto Balaam the son of Beor to Pethor, which is by the river of the land of the children of his people, to call him, saying, Behold, there is a people come out from Egypt: behold, they cover the face of the earth, and they abide over against me:

Bible References

Sent

2 Peter 2:15
who forsaking the strait road are gone out of the way, following the path of Balaam the son of Bosor who loved the wages of iniquity.
Revelation 2:14
Yet I have a few things against thee, that thou hast there some who hold the doctrine of Balaam, who taught Balac to lay a stumbling-block before the children of Israel, to eat of idol sacrifices, and to commit whoredom.