Proverbs 19:27
If you stop listening to instruction, my son, you will stray from the words of knowledge.
Deuteronomy 13:1-4
If there arise in the midst of you a prophet, or a dreamer of dreams, and he give you a sign or a wonder,
1 Kings 22:22-28
Yahweh said to him, 'How?' He said, 'I will go out and will be a lying spirit in the mouth of all his prophets.' He said, 'You will entice him, and will also prevail. Go out and do so.'
Proverbs 14:7
Stay away from a foolish man, for you won't find knowledge on his lips.
Matthew 7:15
"Beware of false prophets, who come to you in sheep's clothing, but inwardly are ravening wolves.
Matthew 16:6
Jesus said to them, "Take heed and beware of the yeast of the Pharisees and Sadducees."
Matthew 16:12
Then they understood that he didn't tell them to beware of the yeast of bread, but of the teaching of the Pharisees and Sadducees.
Mark 4:24
He said to them, "Take heed what you hear. With whatever measure you measure, it will be measured to you, and more will be given to you who hear.
Mark 7:6-14
He answered them, "Well did Isaiah prophesy of you hypocrites, as it is written, 'This people honors me with their lips, but their heart is far from me.
John 10:5
They will by no means follow a stranger, but will flee from him; for they don't know the voice of strangers."
2 Corinthians 11:13-15
For such men are false apostles, deceitful workers, masquerading as Christ's apostles.
Ephesians 4:14
that we may no longer be children, tossed back and forth and carried about with every wind of doctrine, by the trickery of men, in craftiness, after the wiles of error;
1 Timothy 4:7
But refuse profane and old wives' fables. Exercise yourself toward godliness.
1 Timothy 6:3-5
If anyone teaches a different doctrine, and doesn't consent to sound words, the words of our Lord Jesus Christ, and to the doctrine which is according to godliness,
2 Peter 2:1-2
But false prophets also arose among the people, as false teachers will also be among you, who will secretly bring in destructive heresies, denying even the Master who bought them, bringing on themselves swift destruction.
1 John 4:1
Beloved, don't believe every spirit, but test the spirits, whether they are of God, because many false prophets have gone out into the world.
2 John 1:10
If anyone comes to you, and doesn't bring this teaching, don't receive him into your house, and don't welcome him,
Revelation 2:2
"I know your works, and your toil and perseverance, and that you can't tolerate evil men, and have tested those who call themselves apostles, and they are not, and found them false.