From My Utmost for His Highest by Oswald Chambers...
"The bedrock of our Christian faith is the unmerited, fathomless marvel of the love of God exhibited on the Cross of Calvary, a love we never can and never shall merit."

I could say more on this, but it would just be me attempting my hand at philosophizing, and since I am merely a humble student of sociology and not of philosophy or anything close to something ressembling deep thinking, I will suffice to say that I like this quote.