2 Corinthians 10:4-5
For the weapons of our warfare are not of the flesh but have divine power to destroy strongholds. We destroy arguments and every lofty opinion raised against the knowledge of God, and take every thought captive to obey Christ.

The false prophet is the man who has no 'strait gate' or 'narrow way' in his gospel. He has nothing which is offensive to the natural man; he pleases all.
Martyn Lloyd-Jones