C. H. Spurgeon, “The Exceeding Riches of His Grace,” on Ephesians 2:7 (Metropolitan Tabernacle Pulpit [Pilgrim Publications], 28:344-345):
I wish I could say something that would make men know how vast is the mercy of God. Oh that these lips had language! Perhaps my failure may be better than fluency. If so, I would gladly be dumb to let mercy itself speak.
Furthermore, dear friends, the exceeding riches of God’s grace may be guessed at by the fact that divine mercy is above all our sins. You cannot sin so much as God can forgive. If it comes to a pitched battle between sin and grace, you shall not be so bad as God shall be good. I will prove it to you. You can only sin as a man, but God can forgive as a God. You sin as a finite creature, but the Lord forgives as the infinite Creator. When I received that thought fairly into my soul last night I felt like Abraham when he laughed for joy: I sin like a man, but he forgives like a God. We will never sin that grace may abound; that were infamous and detestable. But what a blessed text is that: “Where sin abounded grace did much more abound.” Your sin is like a mountain, but if you have faith as a grain of mustard seed you shall say to this mountain, “Be thou removed hence, and cast into the midst of the sea of God’s infinite mercy,” and it shall be done unto you. The atoning blood will wash out all transgression, and not a trace of it shall remain. Does not this fact magnify the mercy of God? Gross and intolerable as your sin may be, yet it is but as the drop of a bucket compared with the immense ocean of forgiving love.
Try again. God’s mercy is greater than his promises. “Oh, no,” say you, “that will not do. We have read of ‘exceeding great and precious promises.’” I tell you his mercy has a glory beyond his promises, for his mercy is the father of his promises. The Lord had mercy and grace before he had spoken a single promise; and it was because his heart was flaming with love that he made a covenant of grace, and wrote therein the words of peace. His promises are precious streams that come leaping up in the deserts of our lost and ruined state, but the depth that lieth under, which Scripture calls “the depth that coucheth beneath,” is richer than the fountain which comes out of it. The mercy of God as the source and wellhead is greater than the promises which flow from it: infinitely greater than our straitened interpretations of the promises, which fall far short of their real meaning, and even that meaning, did we know it, cannot set forth all “the exceeding riches of his grace in his kindness toward us through Christ Jesus.”
Let us try again. God’s mercy is greater than all that all his children ever have received as yet. His redeemed are a multitude that no man can number, and each one draws heavily upon the divine exchequer, but notwithstanding all the grace he has ever given to them (and he has given to each of them a measureless portion), yet is there more grace in God than he has given forth as yet. “Oh,” say you, “how can that be?” It is so because his mercy is not all given out in this life; much of it is laid up for enjoyment in the world to come. The grace which we have not yet tasted is the very crown of the feast. The Lord hath prepared for them that love him an inconceivable bliss. There is heaven, there is glory, there is all the bliss of the endless ages yet laid up in store. Oh the wealth of these heavenly reserves. I am sure I stated the truth when I said that what the Lord has given does not comprehend all the exceeding riches of his grace: he has infinitely more to give.