"Then I remembered that, even if I kept the law perfectly, and kept it for ten, twenty, or thirty years, without a fault, yet if, at the end of that time, I should break it, I must suffer its dread penalty. Those words spoken by the Lord to the prophet Ezekiel came to my mind: "If he trust to his own righteousness, and commit iniquity, all his righteousnesses shall not be remembered; but for his iniquity that he hath committed, he shall die for it." So I saw that I was, indeed, "kept under the law, shut up." I had hoped to escape this way, or that way, or some other way. Was I not "christened" when I was a child? Had I not been taken to a place of worship? Had I not been brought up to say my prayers regularly? Had I not been an honest, upright, moral youth? Was all this nothing? "Nothing," said the law, as it drew its sword of fire: "Cursed is every one that continueth not in all things which are written in the book of the law to do them." So there was no rest for my spirit, nay, not even for a moment. What was I to do? I was in the hands of one who showed no mercy whatever, for Moses never said, "Mercy." The law has nothing to do with mercy. That comes from another mouth, and under another dispensation. But before faith came, I was "kept under the law, shut up unto the faith which should afterwards be revealed."
From Charles Haddon Spurgeon Autobiography: The Early Years 1834-1860 Volume 1 By Charles Spurgeon / Banner Of Truth