What is a fasle teacher and how do you spot them? Here is one among many.
They are false teachers among us. They have no actual reverence for God. They turn the grace of God into 'lewdness' (Jude v. 4) They teach Christ on the Cross is a license for immoral conduct. They talk a great deal about grace and liberty, but they themselves a remain slaves of corruption. They are more interested in how they feel and what works, rather than what is true and what is right. Which is a common theme in many evangelical churches today. The false teachers are indeed among us and drawing many away from salvation. The grace of Christ becomes nothing more than a smoke screen and a way for them to justify their own lust driven conduct. They wilfully and knowingly use christian liberty to continue in lawlessness and entertain the opportunities for their flesh. See (Galatians 5:13 and 1 peter 2:16)
I am not talking about little theological differences either, although they may want to claim such. These men and women are in fact ungodly, seriously ungodly and they have always been in the church, the body of Christ.
Their first goal: Undermined God's Sovereignty. Take the word of God and tweak it to fit their worldly lusts. This tweaking is not differences between believers over small matters! We must remember that no one invented or even discovered the Christan faith. In fact it was delivered to us, the holy, complete, and final word of God found in scripture. Our duty is to defend that truth, just as the prophets and apostles did, even if it cost us our lives. That battle is in the mind. It is a very serious war people. The struggle will determine your eternal fate, heaven or hell. This is no time for docile happy go lucky 'can't we set aside our differences and just love one another' compromises. This is the time to proclaim the word of God with complete clarity and authority.
The very essence of all apostasy "The fear of Me is not in you" (Jeremiah 2:19). Many will know the truth and reject it. Jesus was surrounded by many that saw His miracles and teachings of truth, and walked away from Him. The utter clarity of Christ's teachings pierced them like a sword because they loved the flesh and the darkness, and walked away.
Our only worthy weapon is the word of God. It is the absolute authority and holds perfect sufficiency in making mature discerning decisions on what is true and what is false, what is good and what is evil. Anyone who hears and then denies the truth is an apostate. No genuine believer can ever fall away (1 John 2:19 and John 10:28-29)!
These people are not true believers. Obedience and submission to Christ is not evident in their word or deed. They remain lost and lovers of darkness and only the truth can liberate them. The truth of scripture, the absolute clarity of God's revealed word. Resist that, and you will remain ungodly and unsaved by Christ. Compromising God's word and false teachings are nothing new. Christ warned us before hand in Mark 13:23. We must rise up and defend God's word. We must restore order in the church and have zero tolerance for Apostates and those who corrupt scripture .
Highly Recommend John MacArthur's The Truth War!
More on the topic:
Independent Conservative as a great post: Christless Christianity.