Prayer

James 5:16
16 Confess your faults one to another, and pray one for another, that ye may be healed. The effectual fervent prayer of a righteous man availeth much.

Philippians 4:6-7
6 Be careful for nothing; but in every thing by prayer and supplication with thanksgiving let your requests be made known unto God.

7 And the peace of God, which passeth all understanding, shall keep your hearts and minds through Christ Jesus.