Matthew 15:14

Regard them not; for they are blind guides of the blind: and if the blind lead the blind, both will fall into the ditch.

2 Corinthians 1:17

Now when I intended this, was I chargeable with levity? or what I purpose, do I purpose from carnal motives, that with me there should be yea, yea, and then no, no?

Revelation 19:20

And the beast was taken, and with him the false prophet, who had wrought signs before him, by which he deceived those who had received the mark of the beast, and those who worshipped his image. These both were cast alive into the lake of fire burning with brimstone.

Treasury of Scripture Knowledge

Summary

Behold, I am against them that prophesy false dreams, saith the LORD, and do tell them, and cause my people to err by their lies, and by their lightness; yet I sent them not, nor commanded them: therefore they shall not profit this people at all, saith the LORD.

Therefore

Bible References

To err

Revelation 19:20
And the beast was taken, and with him the false prophet, who had wrought signs before him, by which he deceived those who had received the mark of the beast, and those who worshipped his image. These both were cast alive into the lake of fire burning with brimstone.

And by

2 Corinthians 1:17
Now when I intended this, was I chargeable with levity? or what I purpose, do I purpose from carnal motives, that with me there should be yea, yea, and then no, no?

Therefore

Matthew 15:14
Regard them not; for they are blind guides of the blind: and if the blind lead the blind, both will fall into the ditch.