Matthew 7:15
But beware of false prophets, who come to you in sheeps clothing, but inwardly they are ravenous wolves.
Matthew 16:6
And Jesus said to them, Take heed and beware of the leaven of the Pharisees and Saducees.
Matthew 16:12
Then they understood, that he did not bid them beware of the leaven of bread, but of the doctrine of the Pharisees and Saducees.
Mark 4:24
And he said to them, Take heed what ye hear. With what measure ye mete, it shall be measured to you, and to you that hear, shall more be given.
Mark 7:6-14
He answering said to them, Well hath Isaiah prophesied of you hypocrites, as it is written, This people honoureth me with their lips, but their heart is far from me.
John 10:5
They will not follow a stranger, but will flee from him; for they know not the voice of strangers.
2 Corinthians 11:13-15
For such are false apostles, deceitful workers, transforming themselves into apostles of Christ.
Ephesians 4:14
That we may be no longer children, fluctuating to and fro, and carried about with every wind of doctrine, by the slight of men, by cunning craftiness, whereby they lie in wait to deceive:
1 Timothy 4:7
But avoid profane and old wives fables, and exercise thyself unto godliness.
1 Timothy 6:3-5
If any teach otherwise, and consent not to sound words, those of our Lord Jesus Christ, and to the doctrine which is after godliness,
2 Peter 2:1-2
But there were false prophets also among the people, as there shall likewise be false teachers among you, who will privily bring in destructive heresies, even denying the Lord that bought them, and bring upon themselves swift destruction.
1 John 4:1
Beloved, believe not every spirit, but try the spirits, whether they are of God, because many false prophets are gone out into the world.
2 John 1:10
he that abideth in the doctrine of Christ, he hath both the Father and the Son. If any come to you, and bring not this doctrine,
Revelation 2:2
I know thy works, and thy labour, and thy patience, that thou canst not bear evil men; and thou hast tried those who say they are apostles and are not, and hast found them liars: And hast patience,