Failure.
I suppose you could say that failure is Sin, but failure does carry the reality of the condition we suffer from. Failure is humanities terminal illness, with no cure. John 8:34, 16:9.
God is merciful, that is one of His many attributes. God has been so merciful to humanity, that He sent his one and only son Jesus into the world to save us. Salvation for eternity and heaven come from our trusting in Jesus now, today. we must believe that he died for us, and rose from the dead on the third day. John 3:16-21, Mark 15:21-32, Mark 16:1-11, Phillippians 2:5-11.
Ask me and I will tell you! 