The Word of God reveals the will of God
......which helps us to pray effectively.
"Now this is the confidence that we have in Him, that if we ask anything according to His will, He hears us.
And if we know that He hears us, whatever we ask, we know that we have the petitions [prayers, requests and needs] that we have asked of Him"
1 John 5:14,15
Healing is the will of God for His people,
.........so we can pray confidently,
....knowing that He hears us and that we will
...............receive our healing!