One April during my Air Force tour, our squadron commander handed us a goal: a 100% off-duty safety record for the summer.

I raised an eyebrow. Our squadron was based in college-town Phoenix and consisted of twentysomethings brandishing motorcycles, ATV’s, jet-skis, and a love of drink. No off-duty accidents for a whole summer seemed as likely as deciphering a Newsboys lyric.

Later, that commander visited the flightline and happened to strike up a conversation with my work group. Being a little (too?) bold, I asked if he realistically expected the 100% goal to be reached. His gracious reply:

“Well, what results would I get if I only asked for 80%?”

I am among many Christians struggling with certain sins. We sincerely want to please God, cut the garbage out of our lives. The first thing I often say to teens who admit they’re struggling is, “Good. Struggle is good. It’s better than surrender.”

But eventually we have to face the results. Longings to become gentler and kinder, with little to show for it. Years of bondage to sexual sin. Constant failed attempts to be more honest. Our flesh doesn’t just roll over; it weighs us down, and our hearts sink with it.

One day, I heard a talk that transformed my approach to sin.

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