Philippians 4 : 8

Don't worry over anything whatever; tell God every detail of your needs in earnest and thankful prayer, and the peace of God, which transcends human understanding, will keep constant guard over your hearts and minds as they rest in Christ Jesus (Philippians 4 : 8 Phillips translation).  Some may think this is such a tall order that it's impossible to do. It's only when we live by faith that the impossible can become possible.