Matthew 12:34 (KJV)

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.

Either make the tree good, and his fruit good; or else make the tree corrupt, and his fruit corrupt: for the tree is known by his fruit.

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.

But he answered and said unto them, An evil and adulterous generation seeketh after a sign; and there shall no sign be given to it, but the sign of the prophet Jonas: