Matthew 5:22, 29-30

But I tell you, if you are angry with a brother or sister, you will be judged. If you say bad things to a brother or sister, you will be judged by the council. And if you call someone a fool, you will be in danger of the fire of hell.

If your right eye causes you to sin, take it out and throw it away. It is better to lose one part of your body than to have your whole body thrown into hell. If your right hand causes you to sin, cut it off and throw it away. It is better to lose one part of your body than for your whole body to go into hell.