We are not immune and then again we are. There is the testimony and the glory that God receives from our lives when we triumph and overcome difficult sitatuations and circumstances. I believe that there are things that God does with our lives to bring us from glory to glory....sometimes they are difficult and sometimes they are joyous outcomes. But I also believe that there are things that we do--practical ways of living out our lives that also result in difficulty and can also be joyous. I heard a preacher say that he loves to ride his motorcycle--unless he hears specifically, "don't ride today"-- he doesn't ususally stop to ask God if it's ok to ride his motorcyle but his belief is, "God is ever present with me and so when I ride He is with me and protects me." Relationship. So as I walk through this life I may make good decisions and awful ones. (not talking about sin). Sometimes we just choose the wrong thing based on the information we have--so when we realize we made a bad choice--we have to trust God to bring us through. and He will. I think some people continue to make bad choices, don't learn from mistakes, don't rely on God and therefore it seems they always fall into a bad way. I think that is sin. Now faith is the substance of things hoped for and the evidence of things not seen. Unbelief is sin because we doubt God. How do you feel when your child doesn't listen to you or have faith in what you are saying..
Ultimately God has plans and purposes for our lives--before our mothers knew us, God knew us. He knows where when and how our lives intersect with time and space. and he has ordained us for glory...For my thoughts toward you are for good and not evil, to give you a HOPE and an EXPECTED (successful) end.