5 Bible Verses about Teachers, Of False Doctrines

I appeal to you, brothers, to watch out for those who cause divisions and create obstacles contrary to the doctrine that you have been taught; avoid them. For such persons do not serve our Lord Christ, but their own appetites, and by smooth talk and flattery they deceive the hearts of the naive.

and from among your own selves will arise men speaking twisted things, to draw away the disciples after them.

And many will follow their sensuality, and because of them the way of truth will be blasphemed.

Now the Spirit expressly says that in later times some will depart from the faith by devoting themselves to deceitful spirits and teachings of demons,

I am astonished that you are so quickly deserting him who called you in the grace of Christ and are turning to a different gospel-- not that there is another one, but there are some who trouble you and want to distort the gospel of Christ.