"So do not worry, saying, 'What shall we eat?' or 'What shall we drink?' or 'What shall we wear?' For the pagans run after all these things, and your heavenly Father knows that you need them. But seek first His kingdom and His righteousness, and all these things will be given to you as well. Therefore, do not worry about tomorrow, for tomorrow will worry about itself. Each day has enough trouble of its own." Matthew 6:31-34
This really is a continuation of the previous passage. Don't worry about your life. God will take care of you...if you're seeking Him. This doesn't mean you should quit your job because "God will provide" and you can "better serve Him without a job," but rather make him priority 1 in your life. Do what He calls you to do, and He'll take care of the rest.
Remember: Obedience is success.