God will test you because He wants you to mature. He wants you to develop a walk with Him that is not based on your fluctuating emotions, but on your commitment to Him as you learn to walk by faith.
If you have faith in God, if you believe that God can use you, if you are willing to take a step of faith here and there, then God can do incredible things through you.
God allows hardship in our lives so that our beliefs-those handholds of faith in a troubled world-will became more and more real to us and less and less theory.
And any declaration of faith that does not result in a changed life and good works is a false declaration. It is faith alone that justifies. But faith that justifies can never be alone.