Matthew 6:6-8, 27, 33-34
6-8 But when you pray, go into your room, close the door and pray to your Father, who is unseen. Then your Father, who sees what is done in secret, will reward you. And when you pray, do not keep on babbling like pagans, for they think they will be heard because of their many words. Do not be like them, for your Father knows what you need before you ask him.
27 Who of you by worrying can add a single hour to his life?
33-34 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.
http://www.biblegateway.com/passage/?search=Matthew%206&version=NIV1984
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