Shine when it is darkest.
The world isn't interested in someone selling them what they already have. People want to see what sets Christians apart. Habakkuk noted that crops failed, cattle starved, yet he said, "I will be joyful in God my Savior. The Sovereign Lord is my strength, he makes my feet like the feet of a deer, he enables me to tread on the heights." (Chap 3)
When we suffer our greatest tribulations, we have the greatest opportunity to show the world what we're made of. We have the opportunity to show the the Holy Spirit in us, to show that we overcome where others would crumble. At our lowest, we are enabled to tread on the heights.
Will you?