Why we must oppose false teachers: They shut heaven's door in people's faces- ebooks-freezone

In the sermon The Characteristics of False Spiritual Leaders, Part 1, John MacArthur said,

There have always been and there always will be in this world false spiritual leaders who pretend to represent God, but in fact do not represent God. The Old Testament talks about them, identifies them, and warns people to stay away from them. The New Testament does the same. In fact, Moses was in conflict with them in Egypt. Jeremiah was fighting with them in Judah. Ezekiel faced them and called them foolish prophets that followed their own spirit and have seen nothing. Our Lord warned of them as false Christ's and false prophets who shall show great signs and wonders. The apostle Paul struggled against them as preachers of another gospel in Galatians Chapter 1, and purveyors of the doctrine of demons he called them in writing to Timothy. 

Peter said they were false preachers who secretly bring in damnable heresies and they are like dogs who return to lick up their own vomit. John, the apostle, saw a coming anti-Christ and many anti-christs already present who denied Jesus as the true Christ. Jude saw them and called them deluded dreamers who defile the flesh. And Paul may have summed it up well when he said they are wolves whose desire is to enter in not sparing the flock. They're always present and they're always eager to counterfeit the work of God.

There is a story recorded by many a historical church father all the way through to twentieth century scholars like Henry Wace and Phillip Schaff, about the false teacher Cerinthus, a contemporary of the Apostle John. Here, Phillip Schaff tells it in his momentous book Nicene and Post-Nicene Fathers,

But Iren�us, in the first book of his work Against Heresies, gives some more abominable false doctrines of the same man, [Cerinthus] and in the third book relates a story which deserves to be recorded. He says, on the authority of Polycarp, that the apostle John once entered a bath to bathe; but, learning that Cerinthus was within, he sprang from the place and rushed out of the door, for he could not bear to remain under the same roof with him. And he advised those that were with him to do the same, saying, "Let us flee, lest the bath fall; for Cerinthus, the enemy of the truth, is within."

It's a traditional story, not well documented, as Schaff notes,

This story is repeated by Eusebius, in Bk. IV. chap. 14. There is nothing impossible in it. The occurrence fits well the character of John as a "son of thunder," and shows the same spirit exhibited by Polycarp in his encounter with Marcion ... But the story is not very well authenticated, as Iren�us did not himself hear it from Polycarp, but only from others to whom Polycarp had told it. 

Yet, two thousand years later, we still tell it. How different things are in our millennial times. Far from shouting that an enemy of God is present and all must flee lest they die under the tumbling stones of the house in which he enters, credible teachers and pastors partner with them! Rarely are false teachers excoriated from the pulpit by pastors, (or at all) thus transferring the same alarm and discernment to their sheep. Instead, if the false teachers are spoken of at any time, the subject is approached by such pastors and teachers as a deer mincing carefully up to the brook for a sip of water, delicately mentioning in general terms some vague notion that 'False teaching is bad. Thank you for listening.'

Can you imagine the outcry if a teacher or pastor or blogger said, "Let us flee, lest the bath fall in while Beth Moore, the enemy of the truth, is there."

Yet as MacArthur noted above, false teachers have always been a plague and a scourge upon the ministers and saints of the truth. They bring disrepute to the name of Jesus and worse, prevent people from entering the kingdom. In Matthew 23, we read of the devastating effects of their evil work. Jesus said bluntly reserving his worst woes and strident speech for the religious hypocrites,

But woe to you, scribes and Pharisees, hypocrites! For you shut the kingdom of heaven in people�s faces. For you neither enter yourselves nor allow those who would enter to go in. Woe to you, scribes and Pharisees, hypocrites! For you travel across sea and land to make a single proselyte, and when he becomes a proselyte, you make him twice as much a child of hell as yourselves.

This is an incredible statement.

False teachers shut the kingdom of heaven in people's faces.

Let that sink in.

For those people who decry discernment work and refuse to be discerning, speak of discerning things, or mark false teachers for the benefit of others, you are actually participating in helping to shut others out of the kingdom.

In the second sentence, we see that false teachers disallow people to go into the kingdom. This is the first woe repeated in different words. Jesus is stressing the result of false teachers' work. In addition, he confirmed the false teachers (hypocrites') ultimate destination.

Thirdly, false teachers make their students and followers twice as much a child of hell as they were. If you understand compounding interest, you understand that the student will grow up to be a false believer or a false teacher and then turn around and make their students twice the sons of hell they were, which will be...well, let's look at this short definition of negatively compounding interest.

A $1000 investment which loses 50% of its value will need to work twice as hard (i.e. grow 100%) just to get back to it original value. An investment that loses 50% in the first year and 20% in the second year will have to grow 150 % in the third year to recoup its starting value.

And that is only losing half the value. Jesus said the next generation will be twice as bad, not just half as bad. Even if you don't like numbers, you can see what the negative impact of succeeding generations of unaddressed false teachers will have on the overall health of the faith.

Later in his sermon The Characteristics of False Spiritual Leaders, Part 1,  John MacArthur said,

Now in looking at verses 1 to 12, I want to suggest to you that a good way to see this section is to see it as a description of the characteristic of a false spiritual leader. And there are five elements that false spiritual leaders lack and I believe the Lord gives them to us right here. They lack authority, they lack integrity, they lack sympathy, they lack spirituality, and they lack humility.

Go on and read of listen to the sermon, which is part of a series. There is a related series called Exposing False Spiritual Leaders, which is also good. Remember the key verse today, Matthew 23:13,

But woe to you, scribes and Pharisees, hypocrites! For you shut the kingdom of heaven in people�s faces. For you neither enter yourselves nor allow those who would enter to go in

It is serious, sisters. Serious. False teachers are not to be coddled, ignored, overlooked, tolerated, or treated non-judgmentally. They attack the sheep, prevent them from entering heaven, and make them children of hell twice as bad as they are.

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Further reading

Challies: 7 False teachers in the Church Today

The history of Christ�s church is inseparable from the history of Satan�s attempts to destroy her. While difficult challenges have arisen from outside the church, the most dangerous have always been from within. For from within arise the false teachers, the peddlers of error who masquerade as teachers of truth. False teachers take on many forms, custom-crafted to times, cultures, and contexts. Here are seven of them you will find carrying out their deceptive, destructive work in the church today. 

Challies: The False Teachers: Arius

This morning I am setting out on a new series of articles that will scan the history of the church�from its earliest days all the way to the present time�and pause to examine some of Christianity�s most notorious false teachers. Along the way we will visit such figures as Pelagius, Servetus, Fosdick, and even a few you might find on television today. We will begin this morning with one of the very first, and certainly one of the most dangerous, false teachers: Arius.

S. Lewis Johnson: Basic Biblical Doctrine, sermon series, read and/or listen. The first sermon,
How Do We Know Spiritual Truth