How To Recognize Ravenous Wolves Among You

How to recognize the false prophets Jesus warned against in Matt. 7:15-23 (yes, this would also be the very chapter about judging):

"Those who do not fall for the deceptions of these false prophets do so by using their godly discernment to look closely at these people rather than just listening to them. How do they really live? What happens to those who follow them? Does what they say and do match up with how Jesus’ disciples are supposed to speak and act? They look at their fruit. When they see the bad fruit they not only don’t follow them, but they also warn others. Also, never forget, these ravenous wolves will be seen by most people as “right on” Christian leaders who call Jesus Lord. They even appear to do “good works” that make them very popular. I submit that Christian leaders such as Rick Warren fit this description very well. He is now a political activist who is so popular with the media and most people that he seems to have taken on a messianic aura. However, we must obey our Lord and look at the fruit. What fruit do we look at?"  

"The test is very simple. We must compare what they do and say with what an obedient servant of the Lord is supposed to do and say. If they are found saying and doing what Jesus would say and do then they pass the test. However, if they say the right things, but they do things contrary to Jesus’ teachings then they fail. If they preach heresy they fail. If they are caught in gross sin they fail. If they are unrepentant about what they do and say when confronted with the truth, they fail. Those who fail have built their “house” on the sand. Those who take the costly route and in obedience to Christ have built their house on the rock and even if they are persecuted, ostracized, or ridiculed by the majority, it does not matter because God is being glorified in their suffering and the second death has no power over them. As for those who fail, Jesus will tell them, “I never knew you; depart from me, you workers of lawlessness.” "

~Mike Ratliff, "Ravenous Wolves in Sheep's Clothing" 

An example of false teaching.