2 Corinthians 11:13-15
For such men are false apostles, deceitful workmen, disguising themselves as apostles of Christ.
Galatians 2:4
But it was because of the false brethren secretly brought in, who had slipped in to spy out our freedom which we have in Christ Jesus, in order to bring us into bondage.
2 Timothy 3:8
Just as Jannes and Jambres opposed Moses, so these men also oppose the truth, men of depraved mind, rejected in regard to the faith.
2 Peter 2:1-2
But false prophets also arose among the people, just as there will also be false teachers among you, who will secretly introduce destructive heresies, even denying the Master who bought them, bringing swift destruction upon themselves.