Therefore I tell you, do not worry about your life, what you will eat or drink or about your body, what you will wear.  Is not life more than food and the body more than clothes? Do not worry about tomorrow for tomorrow will worry about itself.  Each day has enough trouble of its own- Matthew 6:25-34

Other Verses on Anxiety:

Cast all your Anxiety on Him because he cares for you.  1 Pet 5:7

Do not be Anxious about anything, but in every situation, by prayer and petition with thanksgiving, present your requests to God. Phil 4:6

Can any of you by worrying add a single hour to you life? Matthew 6:27

When anxiety was great within me, your consolation brought me joy.  

Have I not commanded you?  Be strong and courageous .  Do not be afraid; do not be discouraged, for the Lord your God will be with you wherever you go. - Joshua 1:9