Matthew 7:15-17
Beware of the false prophets, who come to you in sheeps clothing, but inwardly are ravening wolves.
John 3:19-21
And this is the condemnation, that the light hath come into the world, and men loved the darkness rather than the light; for their deeds were evil.
2 Corinthians 11:13-15
For such are false apostles, deceitful workmen, transforming themselves into apostles of Christ.
2 Thessalonians 2:9-11
[he,] whose coming is after the working of Satan with all power, and signs, and wonders of falsehood,
2 Timothy 4:3-4
For the time will come, when they will not endure sound doctrine, but after their own desires will they heap to themselves teachers; because they have itching ears;
2 Peter 2:1-2
But there arose false prophets also among the people, as there will be false teachers among you also, who will stealthily bring in destructive factions, even denying the Lord that bought them; bringing upon themselves swift destruction.