Revelation 2:6

But this is in your favor--You hate the life lived by the Nikolaitans, and I also hate it.

2 John 1:9-10

Every one who goes beyond the limits of the Teaching of the Christ has failed to find God; the man who keeps to that Teaching--he has found both the Father and the Son.

Revelation 2:14-15

Yet I have a few things against you--You have among you those who hold to the Teaching of Balaam, who taught Balak to put temptations in the way of the Israelites, so that they should eat idol-offerings and commit licentious acts.

Treasury of Scripture Knowledge

Summary

But this thou hast, that thou hatest the deeds of the Nicolaitans, which I also hate.

Bible References

That

Revelation 2:14
Yet I have a few things against you--You have among you those who hold to the Teaching of Balaam, who taught Balak to put temptations in the way of the Israelites, so that they should eat idol-offerings and commit licentious acts.
2 John 1:9
Every one who goes beyond the limits of the Teaching of the Christ has failed to find God; the man who keeps to that Teaching--he has found both the Father and the Son.