Forgive me for the long videos, but since we are often so visually-centered, I thought this might be a good way to convey the importance and necessity of right doctrine.
False Prophets and Teachers
"But false prophets also arose among the people, just as there will be false teachers among you, who will secretly bring in destructive heresies, even denying the Master who bought them, bringing upon themselves swift destruction. And many will follow their sensuality, and because of them the way of truth will be blasphemed. And in their greed they will exploit you with false words. Their condemnation from long ago is not idle, and their destruction is not asleep.
For if God did not spare angels when they sinned, but cast them into hell and committed them to chains of gloomy darkness to be kept until the judgment; if he did not spare the ancient world, but preserved Noah, a herald of righteousness, with seven others, when he brought a flood upon the world of the ungodly; if by turning the cities of Sodom and Gomorrah to ashes he condemned them to extinction, making them an example of what is going to happen to the ungodly; and if he rescued righteous Lot, greatly distressed by the sensual conduct of the wicked (for as that righteous man lived among them day after day, he was tormenting his righteous soul over their lawless deeds that he saw and heard); then the Lord knows how to rescue the godly from trials, and to keep the unrighteous under punishment until the day of judgment, and especially those who indulge in the lust of defiling passion and despise authority.
Bold and willful, they do not tremble as they blaspheme the glorious ones, whereas angels, though greater in might and power, do not pronounce a blasphemous judgment against them before the Lord. But these, like irrational animals, creatures of instinct, born to be caught and destroyed, blaspheming about matters of which they are ignorant, will also be destroyed in their destruction, suffering wrong as the wage for their wrongdoing. They count it pleasure to revel in the daytime. They are blots and blemishes, reveling in their deceptions, while they feast with you. They have eyes full of adultery, insatiable for sin. They entice unsteady souls. They have hearts trained in greed. Accursed children! Forsaking the right way, they have gone astray. They have followed the way of Balaam, the son of Beor, who loved gain from wrongdoing, but was rebuked for his own transgression; a speechless donkey spoke with human voice and restrained the prophet's madness.
These are waterless springs and mists driven by a storm. For them the gloom of utter darkness has been reserved. For, speaking loud boasts of folly, they entice by sensual passions of the flesh those who are barely escaping from those who live in error. They promise them freedom, but they themselves are slaves of corruption. For whatever overcomes a person, to that he is enslaved. For if, after they have escaped the defilements of the world through the knowledge of our Lord and Savior Jesus Christ, they are again entangled in them and overcome, the last state has become worse for them than the first. For it would have been better for them never to have known the way of righteousness than after knowing it to turn back from the holy commandment delivered to them. What the true proverb says has happened to them: “The dog returns to its own vomit, and the sow, after washing herself, returns to wallow in the mire.”
2 Peter 2
What a tragedy it is when we have our own fellow believers being tempted by and trusting in false doctrines! Paul says, "And [Jesus] gave the apostles, the prophets, the evangelists, the shepherds and teachers, to equip the saints for the work of ministry, for building up the body of Christ, until we all attain to the unity of the faith and of the knowledge of the Son of God, to mature manhood, to the measure of the stature of the fullness of Christ, so that we may no longer be children, tossed to and fro by the waves and carried about by every wind of doctrine, by human cunning, by craftiness in deceitful schemes. Rather, speaking the truth in love, we are to grow up in every way into him who is the head, into Christ, from whom the whole body, joined and held together by every joint with which it is equipped, when each part is working properly, makes the body grow so that it builds itself up in love." (Ephesians 4:11-16)
When false apostles and false prophets and false evangelists and false shepherds and false teachers creep in and begin to deceive those who are seeking the true Gospel of Jesus, it is as though they are doing violence to children. No one would stand for that kind of child abuse.
Needless to say, it is crucial for those seeking a true knowledge of God to know what the Bible actually teaches: we can only know Him through faith in Jesus, the only Way to God. We MUST believe in True Doctrine. So whether it be worldwide icons like Oprah Winfrey or Tom Cruise, or even preachers with poor theology like John Hagee or Joel Osteen, we can simply listen to their babbling hot air (Tom Cruise truly is the master at this), weight it against Scripture, and toss it aside as more rubbish. And then we ought to pray for them.
Most of all, we MUST read our Bibles for ourselves. If we merely rely on other people to dictate all that we believe, we submit ourselves to the potential corrupted leadership of a fellow sinner. Yes, we have godly leaders -- who are just as susceptible to sin as anyone else. We ought to trust our godly leaders, but never more than the Scripture which is the very Word of God. So let us read our Bibles together, lest we revert back to the days before Luther and the Reformation when the Roman Catholic Church dictated the identity of Christianity instead of Christ Himself.