Why spiritual healing?
Because of the sinful nature.
But man sinned again send God
Genesis 3:6, Adam and Eve sinned against God.
--we are all in sin,
We need spiritual healing.
--You may ask brother Adam and Eve sinned, I have not sinned.
Read...Psa 51:5 Surely I was sinful at birth, sinful from the time my mother conceived me.
Rom 5:12 Therefore, just as sin entered the world through one man, and death through sin, and in this way death came to all men because all sinned--
Rom 3:23 for all have sinned fall