"First let me say that Henry Wright and IBLP did get it partially right. They are right in saying that disease came into the world because of sin. It is part of the curse, something we wouldn’t have to deal with if sin never entered into the world. Sickness and death were a result of the rebellion of our first parents and will one day be forever taken away when sin is finally once and for all dealt with (Genesis 2:17; Romans 8:23; Revelation 21:4). The Bible also suggests that sin can indeed have an effect on our health (Psalm 28:3; James 5:14-16; Proverbs 7:22-23)."
But to always say that this sin, equals this illness, pinpointing a specific formula to all of it, is wrong, damaging, and unbiblical.