Matthew 7:15
Beware of false prophets, who to outward appearance are sheep, but inwardly they are ravenous wolves.
Matthew 16:6
and Jesus said to them, have a care of the leaven of the Pharisees, and of the Sadducees.
Matthew 16:12
then they perceived, he did not caution them against the leaven of bread, but against the Pharisaick and Sadducean doctrine.
Mark 4:24
And consider, said he, how you hear; for in proportion as you weigh what is communicated to you, new light shall be given:
Mark 7:6-14
Jesus answered, to such hypocrites as you may well be applied those words of the prophet Esaias, "this people honour me with their lips, but their heart is far from me.
John 10:5
a stranger they will not follow, but flee from him: for they know not the voice of strangers.
2 Corinthians 11:13-15
for these are false apostles, deceitful workmen, disguised so as to pass for true apostles.
Ephesians 4:14
that we should be no longer children, fluctuating, and carried about with every empty doctrine, by men vers'd in sleight and the crafty arts of deceit:
1 Timothy 4:7
as for prophane and groundless fables, reject them.
1 Timothy 6:3-5
If any one deviate from this doctrine, not adhering to the wholesome instructions of our Lord Jesus Christ, the true doctrine of piety,
2 Peter 2:1-2
As there were false prophets among the people of Israel, there will likewise be false doctors among you, who by introducing pernicious sects, and by renouncing the Lord, who bought them, will 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
whoever comes to you unaccompanied with this doctrine, don't admit him to your house, nor treat him with the common term of civility.
Revelation 2:2
I know thy works, thy labour, and thy patience, and that thou canst not bear those who are evil: thou hast tried those who say they are apostles, but are not; and hast found them lyars: