What is pornography?
It is simply any material targeted to generate lustful feelings; anything one looks at and gets the urge for sex. These materials makes people see others as sex objects; looking at others lustfully.
In the Gospels Christ equates this with the sin of adultery as he preached in the popular “Sermon on the Mount”, he says:
“You have heard that it was said, ‘You shall not commit adultery.’ But I say to you that everyone who looks at a woman lustfully has already committed adultery with her in his heart .. If your right eye causes you to sin, pluck it out and throw it away; it is better that you lose one of your members than that your whole body be thrown into hell. And if your right hand causes you to sin, cut it off and throw it away; it is better that you lose one of your members than that your whole body go into hell” (Mt 5:27-30).
Jesus paints a very serious picture here, showing the seriousness of “looking lustfully” at others. He says its better we cut off our hands and pluck off our eyes than allow them lead us to sin. Now whilst these aren’t literal since it is gravely sinful to actually sever one’s own hands or to wound ourselves in this manner, he uses these images to show that we must do all in our power to violently fight and cut off sexual sins from our lives; that we must abandon everything and everyone that leads us into them.