'False Prophets' in the Bible

And many false prophets will appear and will lead many people away [from the truth].

For false Christs and false prophets will appear and they will perform great [miraculous] signs and [supernatural] wonders in order to lead astray even the elect [i.e., God's people], if possible.

For false Christs and false prophets will appear and they will perform [miraculous] signs and [supernatural] wonders in order to lead astray [even] the elect, if possible.

It is too bad for you people when everyone speaks well about you, because the forefathers said the same thing about the false prophets.

But just as there were false prophets among the people before, there will also be false teachers among you [Christians]. They will privately teach harmful doctrines that destroy people [spiritually], by even denying [that Jesus is] the Master, [and thereby] destroying themselves quickly.

Loved ones, do not believe [the message of] every spirit [i.e., every person claiming to be a teacher], but test the spirits [i.e., require proof that they and their message are genuine] to see whether they represent God [or not], because many false prophets have begun circulating throughout the world.