Proverbs 19:27
Cease to listen to instruction, my child, {and you will stray} from sayings of knowledge.
Deuteronomy 13:1-4
"If a prophet stands up in your midst or a dreamer of dreams and he gives to you a sign or wonder,
1 Kings 22:22-28
He said, 'I will go out and I will be a false spirit in the mouth of all his prophets.' And he said, 'You shall entice and succeed, go out and do so.'
Proverbs 14:7
Leave {the presence of a foolish man}, [for] you will not [come to] know {words of knowledge}.
Matthew 7:15
"Beware of false prophets who come to you in sheep's clothing, but inside are ravenous wolves.
Matthew 16:6
And Jesus said to them, "Watch out for and beware of the leaven of the Pharisees and Sadducees!"
Matthew 16:12
Then they understood that he did not say to beware of the leaven of bread, but of the teaching of the Pharisees and Sadducees.
Mark 4:24
And he said to them, "Take care what you hear! With the measure by which you measure out, it will be measured out to you, and will be added to you.
Mark 7:6-14
So he said to them, "Isaiah prophesied correctly about you hypocrites, as it is written, 'This people honors me with their lips, but their heart is far, far away from me.
John 10:5
And they will never follow a stranger, but will flee from him, because they do not know the voice of strangers."
2 Corinthians 11:13-15
For such people [are] false apostles, deceitful workers, disguising themselves as apostles of Christ.
Ephesians 4:14
so that we may no longer be infants, tossed about by waves and carried about by every wind of teaching, by the trickery of people, by craftiness with reference to the scheming of deceit.
1 Timothy 4:7
But reject those {worthless myths told by elderly women}, and train yourself for godliness.
1 Timothy 6:3-5
If anyone teaches other doctrine and does not devote himself to the sound words of our Lord Jesus Christ and the teaching [that is] in accordance with godliness,
2 Peter 2:1-2
But there were also false prophets among the people, as there will be false teachers among you also, who will bring in {destructive heresies}, even denying the Master who bought them, [thus] bringing on themselves swift destruction.
1 John 4:1
Dear friends, do not believe every spirit, but test the spirits [to determine] if they are from God, because many false prophets have gone out into the world.
2 John 1:10
If anyone comes to you and does not bring this teaching, do not receive him into [your] house and do not speak a greeting to him,
Revelation 2:2
'I know your works, and your labor and patient endurance, and that you are not able to tolerate evil, and you put to the test those who call themselves apostles and are not, and you found them [to be] false.