Matthew 7:13-15
"Enter by the narrow gate; for broad is the gate and wide the road that leads to destruction, and many are they who go in by it;
Romans 11:3
Lord, they have killed thy prophets, they have overthrown thine altars; And now I alone am left, and they seek my life.
2 Timothy 4:3-4
For a time will come when they will not listen to wholesome teaching, but wanting to have their ears tickled, they will heap up for themselves teachers upon teachers to satisfy their own fancies.
2 Peter 2:1-3
But there were false prophets, too, among the people, just as among you also there will be false teachers. These will secretly bring in destructive sects, denying even the Master who bought them, and bringing swift ruin upon themselves.