Luke 12:22 Then Jesus said to his disciples: "Therefore I tell you, do not worry about your life, what you will eat; or about your body, what you will wear.
 23 Life is more than food, and the body more than clothes.
 24 Consider the ravens: They do not sow or reap, they have no storeroom or barn; yet God feeds them. And how much more valuable you are than birds!
 25 Who of you by worrying can add a single hour to his life? {Or single cubit to his height}
 26 Since you cannot do this very little thing, why do you worry about the rest?

27 "Consider how the lilies grow. They do not labour or spin. Yet I tell you, not even Solomon in all his splendour was dressed like one of these.
 28 If that is how God clothes the grass of the field, which is here today, and tomorrow is thrown into the fire, how much more will he clothe you, O you of little faith!
 29 And do not set your heart on what you will eat or drink; do not worry about it.

 30 For the pagan world runs after all such things, and your Father knows that you need them. (NIV) (See also Matthew 6:25)