You see, the secret of the gospel is that we become more spiritually mature when we focus less on what we need to do for God and focus more on all that God has already done for us. The irony of the gospel is that we actually perform better as we grow in our understanding that our relationship with God is based on Christ's performance for us, not our performance for him.
Tullian TchividjianTo focus on how I'm doing more than what Christ has done is Christian narcissism
Tullian TchividjianOur hearts are continuously rebellious. Every time we sin in thought, word, or deed, we're essentially saying in that moment that, "I don't need you God. I don't want you God. I like my way better than your way." If this goes on day after day after day, year after year, month after month, it would understandable for God to say, "I've given you ten trillion tries. You're finished." But it's not. So in that sense, His grace is always surprising, never ceases to be amazing and His mercy is remarkably outrageous.
Tullian Tchividjian