Why is watching pornography a sin?

Question:

Please answer my question according to the Bible: are my husband’s actions considered as fornication, that is a deadly sin? He says that he is a Christian and he has entered the covenant with God but he watches pornographic movies with scenes of incest, sodomy, bestiality and other dirty perversions found on the Internet. He also contacts and has discussions with foreign women through Skype.

When you say a deadly sin, I assume you meant the passage from the Bible that says:

If anyone sees his brother committing a sin not leading to death, he shall ask and God will for him give life to those who commit sin not leading to death. There is a sin leading to death; I do not say that he should make request for this. (I John 5:16)(NASB)

No, this passage refers to the denial of the Lord Jesus Christ.

Fornication of the heart is judged

In the famous Sermon on the Mount, Jesus said:

You have heard that it was said, ‘YOU SHALL NOT COMMIT ADULTERY’; but I say to you that everyone who looks at a woman with lust for her has already committed adultery with her in his heart. If your right eye makes you stumble, tear it out and throw it from you; for it is better for you to lose one of the parts of your body, than for your whole body to be thrown into hell. If your right hand makes you stumble, cut it off and throw it from you; for it is better for you to lose one of the parts of your body, than for your whole body to go into hell. (Matthew 5:27-30)(NASB)

Savior said that to look at a woman with lust for her is as if you have committed adultery with her, and it brings the same judgment. Your spouse is considered guilty of all the abominations and perversions he has watched. He did it at the same extent as if he has practiced them. And the judgment is a terrible one, if it is better to tear out the eye of the one who watches this abomination and to cut off the hand that clicks and presses those keys to get on those sites. And your husband still considers himself a Christian after doing all this? Doesn’t he know that …

No immoral will enter the Kingdom of God

When he addressed some people as these, the Apostle Paul wrote:

Or do you not know that the unrighteous will not inherit the kingdom of God? Do not be deceived; neither fornicators, nor idolaters, nor adulterers, nor effeminate, nor homosexuals, nor thieves, nor the covetous, nor drunkards, nor revilers, nor swindlers, will inherit the kingdom of God. (I Corinthians 6:9-10)(NASB)

Through the sites he has watched, your husband became a fornicator, an adulterer, an effeminate, a homosexual, and all other perversions. Let him not be deceived by believing that he is a Christian, born again and that he goes into the kingdom of God. Those born again have definitively broken with sin, but he is still slave to sin.

I want to end asking you a question: What will you do to help your husband get out of these grave sins?

Translated by Felicia Rotaru