1. Pornography obscures the sin of mistreating our neighbour.
Because all women are the "neighbours" of men (and men of women), they should be treated respectfully; not as objects for personal pleasure, if we are to "avoid sexual immorality" (1 Thess. 4:3)

What are we to make of any medium that portrays human bodies as mere objects? These `objects of lust" are real people. To reduce them to body parts and sexual performance tools dehumanizes them. Some would argue that these images are not people, and therefore cannot be violated. But can we so easily separate our treatment of photographic images and people made in God's image? When the biblical virtues of love, modesty; purity and chastity are suppressed by lust, exhibitionism, decadence, and promiscuity, all of these involved are hurt. If, before marriage, we see each other only as sexual objects, how will we stop doing so once married? What will happen in relationships with people other than one's spouse?

2. Pornography normalizes and invites sexual immorality.
In the digitally manipulated world of centrefolds, the human body is smoothed to "perfection", defined in limited (often surgically enhanced) shapes, and displayed in ways that encourage fantasy "relationships." Premarital intercourse, adultery, multiple-partner sex, homosexuality and bi-sexuality are graphically displayed and promoted, dulling the viewer's conscience. Many viewers says that after indulging in pornography, they think of the opposite sex almost exclusively in sexual terms, judging them physically and fantasizing about sex acts. If we think promiscuously, when will these thoughts lead to actions?

3. Pornography that contains violence will stimulate aggressive behaviour.
Decades of research show that viewers of violent pornography become more aggressive towards females who anger them. Many viewers who could not imagine themselves stooping to sexual violence find themselves gradually accepting what they watch, and believing the participants deserve what they get. While few viewers become sex criminals, many suffer loses in gentleness and sensitivity, self-control and patience. In addition, the consumer of pornography supports an industry that habitually uses violence against those who pose.

4. Pornography can injure fidelity and intimacy in marriage.
Several studies show that exposure to non-violent sexually explicit materials results in higher expectations for sexual activity, higher tolerance for deviant forms of sexual experience, lower esteem for women rated as "average" in attractiveness, and less satisfaction in the level of love for one's spouse. Young people may falsely assume they are `getting sexual experimentation out of their systems," When they actually building patterns that can significantly hamper their future.

According to researcher Patrick Carnes, pornography - viewing often becomes a habit, even an addiction. What if one's spouse is deeply hurt by this focus on others bodies? How can any relationship live up to a fantasy, since by definition a fantasy is about one person exercising absolute control? In many ways pornography challenges the marriage covenant. Faithfulness includes the mind, a perspective Jesus addressed when he observed that "anyone who looks at a woman lustfully has already committed adultery with her in his heart" (Matt.5:28).

-Selected (Internet)