We are living in a day and age when good is called evil, and evil is called good. We need to be diligent about remaining righteous. Pastor David is reminding us to be lights in the darkness. It's easy to see a bright light in the dark. But if we don't let our little lights shine, no one will be able to tell we are different from the darkness. We should take time to recharge our batteries and make sure that our light doesn't dim. We want to be known as Christians, and for people to see we're different.