Matthew 6:25

Therefore I tell you, stop being worried or anxious (perpetually uneasy, distracted) about your life, as to what you will eat or what you will drink; nor about your body, as to what you will wear.  Is life not more than food, and body more than clothing.  

Fear and worry work in the opposite direction of faith.  Fear cancels out faith and erodes the power of God to work on our behalf.  We can’t have fear and expect to receive from God.  Faith is what pleases God, and we increase our confidence when we study the Word.  Speak to the mountain with the Word in faith and watch it disappear.