Joyce Meyer:

If you know how to worry, you know how to meditate. It means to think of something over and over. Meditation on God’s Word is one of the major ways you can find deliverance from worrying. Just as we once formed a habit of worrying (meditating on the problem), we can form a new habit of meditating on God’s Word. Take portions of Scripture that comfort you, and roll them over and over in your mind. Do it on purpose!

As soon as you are facing a difficult situation that tempts you to worry, begin to confess and meditate on Scripture. In this way, you do warfare with the enemy of your soul (Satan). When you begin to worry, go find something to do. Get busy being a blessing to someone; do something fruitful. Talking about your problem or sitting alone, thinking about it, does no good; it serves only to make you miserable. Above all else, remember that worrying is totally useless. Worrying will not solve your problem.

Worry cannot exist without fear. We can fear things into existence. Fear looks into the future and imagines the worst that can happen. “Fear hath torment,” according to 1 John 4:18 (KJV). God loves you, and you can live without fear because He does. He has pro-mised to take care of you, to meet your legitimate needs. I am not promising that God will give you everything you want. There are times when we want things that God knows would not be good for us. He promises in Luke 11 that if we ask for bread, He will not give us a stone; likewise, if we ask for a stone, He will not give us a stone when what we need is bread. God will always do what is best for us, and we need to trust that. That kind of faith leads us into lives of peace and understanding. — http://beliefnet.com