Matthew 7:15-17
But beware of false prophets, who come to you in sheep's clothing, but within they are rapacious wolves.
John 3:19-21
And this is the judgment; that the light has come into the world, and men loved darkness rather than the light, because their deeds are evil.
2 Corinthians 11:13-15
For such false apostles, deceitful laborers, transform themselves into apostles of Christ.
2 Thessalonians 2:9-11
whose coming is according to the power of Satan, with all power and miracles and false prodigies
2 Timothy 4:3-4
for the time will come when they will not endure sound instruction, but will accumulate for themselves teachers according to their desires, pleasing their ear,
2 Peter 2:1-2
But there were also false prophets among the people, as there shall also be false teachers among you, who shall bring in by stealth destructive heresies, even denying the master that bought them, bringing on themselves swift destruction;