So do not throw away your confidence; it will be richly rewarded. You need to persevere so that when you have done the will of God, you will receive what he has promised.Hebrews 10:35-36 (NIV)
God has confidence in us, so why do we often not have confidence in Him that He will provide all we need in every situation. Yes, God can sometimes ask us to do something which scares us, or fills us with dread, but no matter what he asks of us, we can do it when we trust God to provide all we need.
God has confidence is us, so we should have confidence in Him.