“Take heed that no one deceives you.”

And Jesus answered and said to them: “Take heed that no one deceives you. For  many will come in My name, saying, ‘I am the Christ,’  and will deceive many. And you will hear of  wars and rumors of wars. See that you are not troubled; for  all these things must come to pass, but the end is not yet. For  nation will rise against nation, and kingdom against kingdom. And there will be  famines,  pestilences, and earthquakes in various places. All these are the beginning of sorrows. “Then they will deliver you up to tribulation and kill you, and you will be hated by all nations for My name’s sake. And then many will be offended, will betray one another, and will hate one another. Then  many false prophets will rise up and  deceive many. And because lawlessness will abound, the love of many will grow  cold. But he who endures to the end shall be saved. And this  gospel of the kingdom  will be preached in all the world as a witness to all the nations, and then the end will come. “Then if anyone says to you, ‘Look, here is the Christ!’ or ‘There!’ do not believe it. For  false christs and false prophets will rise and show great signs and wonders to deceive,  if possible, even the elect. See, I have told you beforehand. “Therefore if they say to you, ‘Look, He is in the desert!’ do not go out; or ‘Look, He is in the inner rooms!’ do not believe it. For as the lightning comes from the east and flashes to the west, so also will the coming of the Son of Man be. For wherever the carcass is, there the eagles will be gathered together.
Matthew 24:4-14,23-28 - hNKJV