1. Jesus Himself Gives Us the Starting Point
Jesus says:
“Beware of false prophets, which come to you in sheep's clothing, but inwardly they are ravening wolves.”
— Matthew 7:15
Then comes the famous statement:
“Ye shall know them by their fruits.”
— Matthew 7:16
Notice something important.
Jesus doesn't say:
“You will know them because they disagree with you.”
He says their fruit will expose them.
And when Jesus explains the fruit, He isn't primarily talking about whether somebody has the correct interpretation of every theological question.
He talks about the person's character, conduct, and ultimate spiritual product.
That becomes extremely important when we compare passages.
2. The New Testament Actually Allows for Christians to Be Wrong
One of the clearest examples is Apollos.
Acts 18:24–26 describes him as:
eloquent
mighty in the Scriptures
fervent in spirit
teaching accurately concerning Jesus
And yet there was something he didn't understand correctly.
Priscilla and Aquila:
“expounded unto him the way of God more perfectly.”
Now think about what just happened.
Apollos was publicly teaching theology while possessing incomplete understanding.
But Luke doesn't call him:
a false teacher
a false prophet
a wolf
an apostate
Instead, knowledgeable believers taught him more accurately.
And Apollos subsequently became an important Christian teacher.
That's a tremendous biblical precedent.
A sincere teacher can be wrong.
And being corrected doesn't transform him into a false teacher.
3. The Jerusalem Council Gives Us Another Example
Acts 15 is even more fascinating.
There was a major doctrinal dispute concerning circumcision and Gentile believers.
These weren't pagan teachers arguing against Christianity.
These were Christians arguing among themselves about a significant theological issue.
And the apostles and elders gathered together to investigate it.
They didn't say:
"Anyone who disagrees with us is a false teacher."
They reasoned through Scripture, testimony, experience, and the work of God.
Eventually they reached a conclusion.
That tells us something about the early church:
Doctrinal disagreement was not automatically treated as evidence of apostasy.
4. Paul Himself Warns Against Dividing Over Secondary Issues
Romans 14 is particularly revealing.
Paul describes believers who disagree over:
eating certain foods
observing particular days
matters of conscience
And instead of saying:
"Find out who's doctrinally correct and expose the false teachers."
Paul says:
“Let every man be fully persuaded in his own mind.”
And then:
“Why dost thou judge thy brother?”
That's remarkably different from the modern tendency to turn every theological disagreement into a spiritual trial.
5. So What Actually Makes Someone a False Teacher?
Now we get to the serious part.
The New Testament's strongest warnings concern people who deliberately promote destructive teaching, especially while claiming spiritual authority.
Consider 2 Peter 2:1:
“There shall be false teachers among you, who privily shall bring in damnable heresies, even denying the Lord that bought them.”
Notice the language.
Peter isn't describing somebody who misunderstood Romans 9.
He's describing someone introducing destructive doctrine while operating within the Christian community.
And Jude similarly speaks about people who have:
“crept in unawares”
and who pervert grace and deny Christ.
There's a recurring pattern.
6. False Prophets Are Especially Serious Because They Claim Divine Authority
This is where the distinction becomes even sharper.
A person saying:
"I believe this passage means X."
is one thing.
A person saying:
"God told me X."
is another.
Biblical prophecy carried the authority of God.
Therefore Scripture places a very high standard upon anyone claiming to speak prophetically.
Deuteronomy 18 gives the Old Testament test:
If a prophet speaks in God's name and the thing doesn't happen:
“that is the thing which the LORD hath not spoken.”
That's an extraordinarily serious accusation.
And the New Testament continues the principle.
1 John 4:1 says:
“Believe not every spirit, but try the spirits whether they are of God: because many false prophets are gone out into the world.”
Notice the command:
Test them.
Not:
Believe everything.
And not:
Automatically condemn everyone who gets something wrong.
7. Jesus Gives Us Another Major Test: What Do They Produce?
Let's return to Matthew 7.
Jesus says:
“A good tree cannot bring forth evil fruit, neither can a corrupt tree bring forth good fruit.”
This is where the biblical picture becomes much broader than simply:
"Does this person's theology agree with mine?"
The fruit includes things such as:
hypocrisy
greed
exploitation
pride
immorality
manipulation
deception
abuse of spiritual authority
And this is exactly what we see in the warnings about false teachers.
Peter spends considerable time describing their behavior, not merely their doctrinal propositions.
They exploit people.
They are driven by greed.
They entice others into immoral behavior.
They promise freedom while being slaves themselves.
That's a very different picture from:
"Brother Smith interpreted this prophecy differently than I did."
8. Paul Gives Us Perhaps the Most Important Distinction
Here's where I think the conversation gets particularly interesting.
Paul recognizes that someone can preach something imperfectly and yet still genuinely belong to Christ.
Philippians 1:15–18 describes people preaching Christ from wrong motives.
Paul doesn't approve of their motives.
But listen to his response:
“Christ is preached; and I therein do rejoice.”
That's astonishing.
Paul could distinguish between:
bad motives
and
false gospel.
He didn't automatically collapse the two categories.
9. But There IS a Line Paul Says We Must Not Cross
Galatians 1:8 is much more severe.
Paul says:
“Though we, or an angel from heaven, preach any other gospel unto you than that which we have preached unto you, let him be accursed.”
That's not merely:
"We disagree about interpretation."
Paul is talking about another gospel.
And that's important.
The New Testament appears to have a hierarchy of error.
Some errors are matters of interpretation.
Some are serious doctrinal errors.
Some corrupt the gospel itself.
And some people deliberately exploit Christianity while claiming spiritual authority.
Those categories shouldn't all be labeled false teacher.
10. What About Someone Who Is Sincerely Wrong?
This is where I think modern Christianity sometimes gets itself into trouble.
Suppose a pastor teaches:
"I believe the millennium is literal."
Another says:
"I believe it's symbolic."
Another says:
"I'm not convinced either way."
Can all three be Christians?
Absolutely.
Now suppose one of them gets his interpretation wrong.
Being wrong doesn't prove he's a false teacher.
The same principle applies to countless theological questions:
baptism
predestination
free will
spiritual gifts
end-times chronology
church government
communion
creation chronology
women's roles in ministry
Sabbath observance
Christians can be profoundly sincere and profoundly mistaken.
Scripture itself gives us examples of sincere believers who required correction.
11. There Is Also a Difference Between Error and Deception
This may be the most useful distinction of all.
Error
"I believe X because I understand the Scriptures this way."
Deception
"I know X isn't true, but I'm going to teach it because it benefits me."
The second is far closer to the biblical concept of a false teacher.
Peter's description repeatedly emphasizes motives such as covetousness and exploitation.
Paul warns Timothy about people who:
“suppose that gain is godliness.”
And Jesus repeatedly condemns religious leaders who use religion for status and personal advantage.
12. And There's an Even Bigger Problem: False Teachers Can Look Extremely Religious
This is perhaps the most sobering part.
Jesus doesn't describe false teachers as obvious atheists.
He describes them as people who look like sheep.
Matthew 7:22 is even more startling:
“Many will say to me in that day, Lord, Lord, have we not prophesied in thy name?”
They claim:
prophecy
miracles
spiritual authority
the name of Jesus
And yet Christ says:
“I never knew you.”
So biblical discernment cannot simply be:
"Does this person talk about Jesus?"
The question becomes:
What kind of person does their teaching produce, and does their message actually conform to Christ?
13. Here's Where The Original Question About Judging Becomes Important
Remember our discussion from the other day about judging fruit?
This fits beautifully with it.
Jesus says:
“Judge not, that ye be not judged.”
But a few verses later:
“Ye shall know them by their fruits.”
So Jesus clearly isn't prohibiting discernment.
He's prohibiting hypocritical condemnation.
There's a difference between:
"I have examined this teaching and believe it is contrary to Scripture."
and
"You disagree with me, therefore you're a false Christian."
The first can be biblical discernment.
The second can become exactly the kind of judgment Jesus warned against.
14. The New Testament Actually Commands Discernment
This is why I think the modern phrase "Don't judge" is often just as incomplete as the opposite extreme.
We're told:
“Try the spirits.” — 1 John 4:1
“Prove all things.” — 1 Thessalonians 5:21
“Let the prophets speak two or three, and let the other judge.” — 1 Corinthians 14:29
“Judge not according to the appearance, but judge righteous judgment.” — John 7:24
So Christians absolutely have a responsibility to evaluate teaching.
But evaluation isn't the same thing as condemnation.
15. I Think Scripture Gives Us a Useful Three-Level Model
If we put all these passages together, I'd frame it this way:
🟢 Level 1 — Honest theological error
Someone sincerely misunderstands Scripture.
Response: correction, discussion, patience.
Apollos is a good example.
🟡 Level 2 — Serious doctrinal error
Someone teaches something substantially contrary to apostolic teaching.
Response: strong correction and warning.
Galatians gives us examples of this kind of seriousness.
But even here, we should be careful about assuming someone's motives or eternal status.
🔴 Level 3 — False teacher / false prophet
Someone presents themselves as a spiritual authority while deliberately promoting destructive and divisive teaching, especially for personal power, money, status, sexual exploitation, or other self-interest—or falsely claiming divine revelation.
Response: expose, warn, and separate from the destructive teaching.
That's where the New Testament's strongest language belongs.
And Here's the Part I Think Is Especially Relevant Today
Christian social media has created a strange environment where someone can be labeled:
"FALSE TEACHER!"
because they disagree over:
one verse
one doctrine
one translation
one political position
one interpretation of Revelation
one denomination
one worship style
And sometimes the person making the accusation has never actually examined what the other person believes.
That's not the biblical model.
The New Testament doesn't tell us to hunt for people who are wrong.
It tells us to:
test teaching, recognize fruit, protect the flock, correct error, reject destructive divisive doctrine, and remain humble about our own understanding.
And perhaps the most sobering warning of all is that James 3:1 says teachers will receive a stricter judgment. They may get away with it here for a time, but there will come a day they will answer for it.
That means the proper response to theological disagreement shouldn't be:
"I can't wait to prove that you're a false teacher."
It should be:
"I need to be very careful because I am handling the Word of God myself."
And honestly, my friend, that is a very different spirit from what we see in a lot of Christian social media today.
There's wrong interpretation, there's doctrinal error, both are within the body.Then there is False, divisive, status seeking, manipulating, exploitive, greedy, gospel bending people who refuse to change simply for their own benefit. And they are not confined to one particular denomination or belief system. I hope you enjoyed this, it's not pretty but it's true.
