It is going to take time—decades at least—before we are able to accurately tally the cost of our cultural addiction to pornography. But as Christians we know what it means to tamper with God’s clear and unambiguous design for sexuality: The cost will be high. It must be high.

We all know the cost will be high in fractured families and heartbroken parents, husbands and wives. Already we are seeing far too many of these and each one is its own tragedy. We know the cost will be high in the countless thousands of women who are used and abused in front of cameras so they can be violated for other people’s pleasure. That is a sickening tragedy as well. But an overlooked cost, and one that will only become clear in time, is that porn is stealing the best years from a million young Christian men and women. Porn is dominating their lives during their teens and twenties. It is controlling their lives during those years when energy is high and responsibility is low, when the world lies open before them and the possibilities are endless, when they are charting the trajectories for the rest of their lives. Their dreams and their abilities are being hampered and squelched by a reckless commitment to sin.

Pornolescence is that period where he feels the guilt of his sin, but still enjoys it too much to give it up.

This is pornolesence, that period between seeing the sin for what it is and actually putting it to death, that period between the deep soul conviction of immorality and the stubborn commitment to purity. For some people it lasts days, but for many more it lasts for years. A lot of young people—too many young people—are growing up too slowly today. Their sexual awakening is coming far too early and amidst all the wrong circumstances, and it is delaying every other kind of awakening and maturing. It is especially delaying their spiritual maturation.

God will not allow you to soar to spiritual mountain tops while you stoop in pornographic filth.

And I think time will prove that this is one of the gravest costs of pornography: It is stealing the best years from so many young Christians. It is stunting their spiritual growth and delaying their entrance into Christian ministry and service. These are the people who represent the future of the church—future elders, future deacons, future women’s ministry leaders, future youth leaders, future children’s workers, future mentors, future missionaries, future seminary professors, future defenders of the faith, future denominational heads, and on and on. But with each click, with each video, with each unblushing exposure to what God deems abhorrent, they choose to worship a god in place of the God. And all the while they delay their entrance into maturity, into leadership, into who and what God calls them to be.

If this is you, hear my plea: For the sake of Christ’s church, and out of love for Christ’s church, put that sin to death. Do it for Him, and do it for us.