Our Lord Jesus Christ gave us a great warning about False Christ & Prophets
MATTHEW 24:23-24
23 Then if any man shall say unto you, Lo, here is Christ, or there; believe it not.
24 For there shall arise false Christs, and false prophets, and shall shew great signs and wonders; insomuch that, if it were possible, they shall deceive the very elect.
If you know the Bible, the nature of God, the nature of Christ, and He is Lord and Savior, and the commandments of God, there is no way you will be deceived by anybody.
A false Christ or false prophet seeing that God is not working in their life will have the element of human nature there.
So they would not measure up to the truth of the Bible.
And they would be motivated by arrogance, and self exaltation, being of the occult, and wanting power, where Christ was a humble servant.
Also Jesus will never appear in the flesh again once He obtained a glorified body, and there is no need for Him to do that for He only needed to provide salvation once for all.
Some people say they do not understand end time prophesy but a person does not have to know every detail of it.
But if they go against the belief in a personal God and His commandments, and His love and mercy to love your enemies, and do no harm to a person feeding and clothing your enemies, and Jesus is Lord and Savior, do not go along with them.
Which in the future the world will go against that by stopping the belief in a personal God, the preaching of the Gospel, going against His love and mercy where they persecute all people who oppose them which the Bible says their conscious is seared with a hot iron, going against His commandments of love and morality.
It is not hard to know they are a false Christ or false prophet.
Them being like that the desires of their flesh would stick out like a sore thumb and would give them away motivated by arrogance and power and not the love and mercy and morals of God.
For in the flesh dwells no good thing.
Also a false Christ or false prophet would not claim Jesus as Lord and Savior claiming He is the Christ for they want to exalt themselves.
They might claim He is a great teacher or was exalted spiritually but they will claim they are greater and the solution for the prosperity of the world.
Like the the new age christianity where they interpret all religions the same who look at Jesus as a great teacher, and divine, who became an ascended master among others, but they will not claim him as Lord and Savior, and the New Age Christ is greater than him.
Which is the best example I can give but all of them will follow that pattern whatever their beliefs are because they are motivated by the flesh.
Knowing someone is a false Christ or false prophet is easy to know.
They might fool people wondering and having doubts about Christianity and do not have a foothold on the truth.
But they will not fool someone who accepted the truth as iron clad truth.
Mat 24:24 For there shall arise false Christs, and false prophets, and shall shew great signs and wonders; insomuch that, if it were possible, they shall deceive the very elect.
2Th 2:9 Even him, whose coming is after the working of Satan with all power and signs and lying wonders,
2Th 2:10 And with all deceivableness of unrighteousness in them that perish; because they received not the love of the truth, that they might be saved.
Rev 13:13 And he doeth great wonders, so that he maketh fire come down from heaven on the earth in the sight of men,
Rev 13:14 And deceiveth them that dwell on the earth by the means of those miracles which he had power to do in the sight of the beast; saying to them that dwell on the earth, that they should make an image to the beast, which had the wound by a sword, and did live.
Those that are settled in the truth will not be deceived which is why Jesus said they would deceive the very elect if it were possible because it is not possible.
But the world and those wavering concerning the truth will be taken by it.
Rev 3:8 I know thy works: behold, I have set before thee an open door, and no man can shut it: for thou hast a little strength, and hast kept my word, and hast not denied my name.
Rev 3:9 Behold, I will make them of the synagogue of Satan, which say they are Jews, and are not, but do lie; behold, I will make them to come and worship before thy feet, and to know that I have loved thee.
Rev 3:10 Because thou hast kept the word of my patience, I also will keep thee from the hour of temptation, which shall come upon all the world, to try them that dwell upon the earth.
Also Jesus will deliver the elect from the hour of temptation, which shall come upon all the world, to try them that dwell upon the earth.
There can only be one temptation that can come upon the world at the same time which is when the nations come together to work for peace saying they have the solution to stop the fighting, and the truth of religion.
The 7 Churches is a prophetic statement to how the Church age would go in popular influence and if any faults God always has people in the truth.
Which you can see the Catholic Church there and the Protestant movement.
The Church that Jesus said He will deliver from temptation He did not have fault with them.
Rev 3:15 I know thy works, that thou art neither cold nor hot: I would thou wert cold or hot.
Rev 3:16 So then because thou art lukewarm, and neither cold nor hot, I will spue thee out of my mouth.
Rev 3:17 Because thou sayest, I am rich, and increased with goods, and have need of nothing; and knowest not that thou art wretched, and miserable, and poor, and blind, and naked.
Pro 30:10 Accuse not a servant unto his master, lest he curse thee, and thou be found guilty.
Pro 30:11 There is a generation that curseth their father, and doth not bless their mother.
Pro 30:12 There is a generation that are pure in their own eyes, and yet is not washed from their filthiness.
Pro 30:13 There is a generation, O how lofty are their eyes! and their eyelids are lifted up.
Pro 30:14 There is a generation, whose teeth are as swords, and their jaw teeth as knives, to devour the poor from off the earth, and the needy from among men.
And now we are at this Church age which we can see.
The 6th and 7th Church could not have happened in the first century but it would have to happen in the time of technology.
With the temptation that shall come upon the whole world.
And the saints heaping money to themselves because technology is causing money to flow like a raging river.