This is an important question, because there are many people who distort the Gospel of Jesus. This has been the tactic of Satan since the beginning of time, where he was able to take something God said and twist it, thereby deceiving mankind.
Jesus promises that the gates of Hades will not be able to overcome the church, so if Satan can’t defeat the church, he will try to become a part of the church, to divide and weaken the church.
So the question is, how can we tell the difference between a false prophet and a man of God?
Jesus gives us a warning as to how we can identify a false prophet in the Sermon on the Mount:
Peter even warns us that they weren’t just during that time, but that they are still going to come:
During the Tribulation, there is going to be the second beast that will be a deceiver, causing people to make an image to it.
So we know they are coming, and we know that we will know them by their fruit, but what kind of fruit is it that we will be able to recognize them by?
Paul tells Timothy that they are going to come, and the way to know them by their fruit is to hold firm to what he was taught. What is it that he was taught?
God’s Word is the litmus test as to whether a teaching is true or false. Therefore, we hold firm to God's Word.
There is a time where people will give up on the Bible, seeking higher enlightenment. But what John and the writer of Hebrews tells us, is that it is all about Jesus. He will never change, and He will always be the source of truth.
We are to follow the Word of God over anything that man says, and Paul warns that we are to not follow manmade traditions.
So how do we do this? We test what we hear, and make sure it lines up with God’s Word
Paul & John both tell us that even if an angel preaches something different, it is to be accursed
If you want to be able to tell a false prophet, study your Bible and know what it says.
In the FBI, they are trained to be able to recognize a counterfeit bill. The problem is, there are hundreds of different counterfeits out there. Instead of studying each different counterfeit bill, they simply study the real bill so well that they know everything about it, so that when they see something that isn't right, they are able to know that it is a fake.
Are you studying your Bible well enough to be able to tell truth from a lie?
When Jesus was tempted, He quoted Scripture, and knew Scripture even when the devil tried to manipulate it. This is why it is important to find a Bible believing and preaching church, in which you will be guided in the Word of God. This is why it is important to be a part of Biblical Community, so that you are able to receive Biblical guidance. And this is why it is important to daily be in God's Word, meditating on it daily so that you know what it has to say.
God's Word is what will direct you in the path that you are supposed to go, and anything that goes against God's Word should be thrown out as an imposter.