Matthew 15:6-9
7 "You hypocrites, rightly did Isaiah prophesy of you, saying,
8'This people honors Me with their lips,
But their heart is far away from Me.
9'But in vain do they worship Me,
Teaching as doctrines the precepts of men.' NAS
2 Peter 2:1-3
2:1 But false prophets also arose among the people, just as there will also be false teachers among you, who will secretly introduce destructive heresies, even denying the Master who bought them, bringing swift destruction upon themselves. 2 And many will follow their sensuality, and because of them the way of the truth will be maligned; 3 and in their greed they will exploit you with false words; their judgment from long ago is not idle, and their destruction is not asleep.
NAS
James 4:4
4 You adulteresses, do you not know that friendship with the world is hostility toward God? Therefore whoever wishes to be a friend of the world makes himself an enemy of God.
NAS
If the shoe fits wear it. Satan comes in many guises and teaching heresy in the name of truth is one of them.