I found this great post on Pulpit Pimps. 

Read the whole post here.

Here are some of the same things God says about false teachers:

• They are ravenous wolves (Matthew 7:15-16)
• They are practicers of lawlessness (Matthew 7:22-23)
• They are hypocrites ( Matt 15:7-9)
• They are thieves (John 10:1)
• They are slaves of their own appetites (Romans 16:18)
• They are men of flesh (1 Cor 3:1-4)
• They are peddlers of the word of Christ(2 Cor 2:17)
• They are accursed (Galatians 1:6-8)
• They are tricksters and schemers (Ephesians 4:14)
• They are deluders (Ephesians 4:14)
• They are deceivers (Colossians 2:8)
• They are defrauders (Colossians 2:18-19)
• They are teachers of strange doctrine (1 Timothy 1:3)
• They are blasphemers, and have been handed over to Satan (1 Timothy 1:19-20)
• They are teachers of myth (2 Timothy 4:3-4)
• They are paying attention to deceitful spirits and doctrines of demons (1 Timothy 4:1-3)
• They are liars (1 Timothy 4:1-3)
• They are conceited and understand nothing (1 Timothy 6:3-4)
• They have gone astray (1 Timothy 6:20-21)
• They are evil men, deceiving and being deceived (2 Timothy 3:13)
• They are empty talkers, after sordid gain (Titus 1:10-11)
• They turn away from the truth (Titus 1:13-14)
• They are false prophets, false teachers, greedy exploiters (2 Peter 2:1-4)
• They are stains and blemishes, greedy, loving of wages of unrighteuosness (2 Peter 2:13-15)
• They are slaves of corruption (2 Peter 2:19-20)
• They are ungodly (Jude 4)
• They are rebellious people (Isaiah 30:9)