If the role of the church is to turn on the light in order for those lost in darkness to find Jesus the question must be asked. Is your local body, part of the universal Church, shining it's light to the world? If your church turned out the lights would anyone know the difference?
When describing Christ-followers of the early church Peter writes to remind that the church then of who they are in Christ Jesus. "But you are a chosen race, a royal priesthood, a holy nation, a people for his own possession, that you may proclaim the excellencies of him who called you out of darkness into his marvelous light." (1Peter 2:9 ESV) Being called from darkness into the marvelous light of Jesus Christ is no doubt a biblical truth. The beautiful thing about the role of the church is that since we are in the marvelous light of Christ we are able to reflect that light, brightly, to the still darkened world around us. The church is called to be a bright light. If we're not turning the lights on then we aren't being the church.
"The Church exists for nothing else but to draw men into Christ, to make them little Christs. If they are not doing that, all the cathedrals, clergy, missions, sermons, even the Bible itself, are simply a waste of time. God became Man for no other purpose." - C.S. Lewis | Mere Christianity
Are we doing this? If not why not?
If not can we call ourselves the church?
I don't think we can call ourselves part of God's Church or His Kingdom and not turn on the lights.
Let's be light in a dark world and stop making a mockery of our Lord and King.
"Into marvelous light I'm running. Out of darkness out of shame. By the cross You are the Truth, You are the Life, You are the Way." - Charlie Hall: Marvelous Light | Fly Into Daybreak