To sum it all up, then, what is needed for happy and effectual service is simply to put your work into the Lord's hands, and leave it there. Do not take it to Him in prayer, saying, “Lord, guide me, Lord, give me wisdom, Lord, arrange for me,” and then arise from your knees and take the burden all back, and try to guide and arrange for yourself. Leave it with the Lord; and remember that what you trust to Him you must not worry over nor feel anxious about. Trust and worry cannot go together.
"Moody Classics Complete Set: Includes 19 Classics of the Faith in a Single Volume".