'Doctrine' in the Bible

Now I urge you, brothers, to watch out for those who cause dissensions and obstacles contrary to the doctrine you have learned. Avoid them,

As I urged you when I went to Macedonia, remain in Ephesus so that you may instruct certain people not to teach different doctrine

If anyone teaches other doctrine and does not agree with the sound teaching of our Lord Jesus Christ and with the teaching that promotes godliness,

For the time will come when they will not tolerate sound doctrine, but according to their own desires, will multiply teachers for themselves because they have an itch to hear something new.