5 Bible Verses about Teachers, Of False Doctrines

Now I beseech you, brethren, to mark those who are causing the divisions and occasions of stumbling, contrary to the teaching which ye learned; and turn away from them. For those who are such are not serving our Lord Christ, but their own belly; and, through their kind words and flattering speeches, they beguile the hearts of the simple.

and from among yourselves will men arise, speaking perverse things, to draw away the disciples after them.

and many will follow their lascivious doings; by reason of whom the way of the truth will be defamed;

But the Spirit expressly saith, that in later times, some will fall away from the faith, giving heed to seducing spirits, and to teachings of demons,

I marvel that ye are so quickly removing from Him Who called you in the grace of Christ, to a different Gospel, which is not another; only there are some who are troubling you, and wishing to pervert the Gospel of Christ.