'The Lord is my Shepherd, I shall not want. He makes me to lie down in green pastures... Yea, though I walk through the valley of the shadow of death, Your rod and Your staff, they comfort me...' The 'valley of the shadow' is more literally translated as, where the light of the sun is cut off. I want to tell you: wherever you are, whatever your trial, no matter the problem - even if you feel the light of the sun is cut off - God will not fail you.