I walked up to greet some friends at church this past Sunday. One of them, a doctor, asked, “Are you limping?” I explained to him that, when I was 12, I broke my leg badly in a moped collision with a pickup truck, and that my left leg is about an inch shorter than my right. They all agreed that they never noticed before.

I have learned to walk straight, more or less. But sometimes, when I’m tired or not paying attention (like when I was running around, trying to get things ready before church), I limp.

Sin works like that. When we don’t pay attention or feel weak, it creeps into our lives and we don’t even notice. We might have a handle on it when we are feeling strong in the Lord. But it’s during our down times when we need to be careful.

More reason than ever to heed Peter’s words: “Be sober-minded; be watchful. Your adversary the devil prowls around like a roaring lion, seeking someone to devour (I Peter 5:8).” Also a good reason to recharge our spiritual batteries in Bible study and prayer daily.

‘Cause you never know when you’ll need it.