Be anxious for nothing, but in everything by prayer and supplication, with thanksgiving, let your requests be made known to God;
Philippians 4:6 (NKJV)
It takes a daily training of the mind to rid ourselves from the unproductive habit of worry, and instead take our needs and requests to God in simple and childlike faith. And so whatever need may arise, let us receive by faith the supply, the deliverance or the healing that God by His grace has already set before us.
Let the redeemed of the LORD say so, whom he hath redeemed from the hand of the enemy;
Psalm 107:2 (KJV)
As the redeemed of the Lord we are to say with boldness that we have been set free from any and all forms of bondage. When we confess our redemption and the finished works of Jesus Christ, we are releasing our faith to lay hold of the victory that Jesus has already made available.