It’s a teenager’s worst nightmare: waking up with a giant red pimple in the middle of their forehead. In the world of dermatology, it’s just a blemish, but to a teen, it’s life and death.

But for followers of Christ, there’s a much worse blemish: an attitude of grumbling.

My wife, Diana, has observed that I can easily whine—which is Grumble’s twin. Diana’s right (she usually is!). So, I’ve had to confess this sin.

For some of us, grumbling is a visit. For others, it's a destination. And some of us don't appear happy—unless we're grumbling. But if you and I are going to shine as lights in the world, we must ruthlessly eliminate the spirit of grumbling.

Philippians 2:15 reminds us we live amid "a crooked and twisted generation." That's the dark truth. Yet the verse also shares the bright hope: that Christians would be "blameless and innocent children of God without blemish…in a generation, among whom you appear as lights in the world."

The path to victory? Verse 14 says, "Do all things without grumbling or questioning."

• Grumbling is a blemish on the face of our faith.
• Grumbling is what the crooked and twisted do.
• Grumbling makes us less like God and more like the world.
• Grumbling dims our gospel light!

It's time to confess our grumbling—all of it: the silent grumbles no one hears, the mumbled grumbles we secretly wish they would hear, and the noisy grumbles we voice to our friends and family.

There are no grumblers in heaven.

Why should we be grumblers on earth?

‘nough said.