The “confidence” of Hebrews 11:6 in God is sort of like driving at night. Your headlights can only beam a short distance ahead, but as YOU keep moving ahead they will continue to show the same short distance until you finally reach your destination. God won't always show you the whole picture, but you can have the confidence to know that God sees it and always wants the best for you.
http://who-god-is.com/the-foundation-of-faith-is-confidence-in-god