Matthew 12:33 (KJV)

But if I cast out devils by the Spirit of God, then the kingdom of God is come unto you.

Or else how can one enter into a strong man's house, and spoil his goods, except he first bind the strong man? and then he will spoil his house.

He that is not with me is against me; and he that gathereth not with me scattereth abroad.

Wherefore I say unto you, All manner of sin and blasphemy shall be forgiven unto men: but the blasphemy against the Holy Ghost shall not be forgiven unto men.

And whosoever speaketh a word against the Son of man, it shall be forgiven him: but whosoever speaketh against the Holy Ghost, it shall not be forgiven him, neither in this world, neither in the world to come.

O generation of vipers, how can ye, being evil, speak good things? for out of the abundance of the heart the mouth speaketh.

A good man out of the good treasure of the heart bringeth forth good things: and an evil man out of the evil treasure bringeth forth evil things.

But I say unto you, That every idle word that men shall speak, they shall give account thereof in the day of judgment.

For by thy words thou shalt be justified, and by thy words thou shalt be condemned.

Then certain of the scribes and of the Pharisees answered, saying, Master, we would see a sign from thee.