'Doctrine' in the Bible

But I have a few things against thee: that thou hast there those who hold the doctrine of Balaam, who taught Balak to cast a snare before the sons of Israel, to eat of idol sacrifices and commit fornication.

So thou also hast those who hold the doctrine of Nicolaitanes in like manner.

But to you I say, the rest who are in Thyatira, as many as have not this doctrine, who have not known the depths of Satan, as they say, I do not cast upon you any other burden;