Matthew 7:15
Beware of false prophets. They come to you in sheep’s clothing, but inwardly they are ravenous wolves.

Galatians 1:7-9
which is not even a gospel. Evidently some people are troubling you and trying to distort the gospel of Christ. / But even if we or an angel from heaven should preach a gospel contrary to the one we preached to you, let him be under a curse! / As we have said before, so now I say again: If anyone is preaching to you a gospel contrary to the one you received, let him be under a curse!

2 Peter 2:1
Now there were also false prophets among the people, just as there will be false teachers among you. They will secretly introduce destructive heresies, even denying the Master who bought them—bringing swift destruction on themselves.

1 John 4:1
Beloved, do not believe every spirit, but test the spirits to see whether they are from God. For many false prophets have gone out into the world.

Acts 20:29-30
I know that after my departure, savage wolves will come in among you and will not spare the flock. / Even from your own number, men will rise up and distort the truth to draw away disciples after them.

Romans 16:17-18
Now I urge you, brothers, to watch out for those who create divisions and obstacles that are contrary to the teaching you have learned. Turn away from them. / For such people are not serving our Lord Christ, but their own appetites. By smooth talk and flattery they deceive the hearts of the naive.

2 Timothy 3:5
having a form of godliness but denying its power. Turn away from such as these!

2 Timothy 4:3-4
For the time will come when men will not tolerate sound doctrine, but with itching ears they will gather around themselves teachers to suit their own desires. / So they will turn their ears away from the truth and turn aside to myths.

Jude 1:4
For certain men have crept in among you unnoticed—ungodly ones who were designated long ago for condemnation. They turn the grace of our God into a license for immorality, and they deny our only Master and Lord, Jesus Christ.

Revelation 2:2
I know your deeds, your labor, and your perseverance. I know that you cannot tolerate those who are evil, and you have tested and exposed as liars those who falsely claim to be apostles.