On using the "scare tactic"

I'm teaching on purity at the school right now, and one of the major complaints from the guys is that teaching about a life of sexual purity lived unto God is usually packaged in some sort of scare tactic. In other words, "if you sleep with someone, you could get an STD," etc...

While fear certainly provides motives for obedience to some, I am praying for a deeper and more sustaining motivation:

“Terror accomplishes no real obedience. Suspense brings forth no fruit unto holiness. No gloomy uncertainty as to God’s favor can subdue one lust, or correct our crookedness of will. But the free pardon of the cross uproots sin, and withers all its branches. Only the certainty of love, forgiving love, can do this.”

- Horatius Bonar, God’s Way of Holiness

much grace to all of the guys that I teach.