There is so much confusion about sound Doctrine, there are as many doctrines as preachers. The true doctrine has so many faces and colors it's so confusing but Christ was very clear about truth. For this reason many will be led astray to destruction. False doctrines come from the devil, and as the word false indicates it's all lies. Here are some major reasons for false doctrines. 1. Ignorance , which is lack of knowledge among those who teach. Romans 10:2-4. 2. Greed . Doctrines have emerged for selfish economic reasons. Paul calls it self gain 2 Peter 2:1-3. 3. The third reason is direct influence from satan. Demonic doctrines 2 Timothy 4:1. We need to be warned, to carefully follow the sound Doctrine.