Taken from: http://www.spurgeon.org/sermons/2078.htm
"And he said unto Jesus, Lord, remember me when thou comest into thy kingdom. And Jesus said unto him, Verily I say unto thee, To day shalt thou be with me in paradise."—Luke 23:42-43.
Know that if you have believed in Jesus you are prepared for heaven. It may be that you will have to live on earth twenty, or thirty, or forty years to glorify Christ; and, if so, be thankful for the privilege; but if you do not live another hour, your instantaneous death would not alter the fact that he that believeth in the Son of God is meet for heaven. Surely, if anything beyond faith is needed to make us fit to enter paradise, the thief would have been kept a little longer here; but no, he is, in the morning, in the state of nature, at noon he enters the state of grace, and by sunset he is in the state of glory. The question never is whether a death-bed repentance is accepted if it be sincere: the question is—Is it sincere? If it be so, if the man dies five minutes after his first act of faith, he is as safe as if he had served the Lord for fifty years. If your faith is true, if you die one moment after you have believed in Christ, you will be admitted into paradise, even if you shall have enjoyed no time in which to produce good works and other evidences of grace. He that reads the heart will read your faith written on its fleshy tablets, and he will accept you through Jesus Christ, even though no act of grace has been visible to the eye of man.
"And he said unto Jesus, Lord, remember me when thou comest into thy kingdom. And Jesus said unto him, Verily I say unto thee, To day shalt thou be with me in paradise."—Luke 23:42-43.
Know that if you have believed in Jesus you are prepared for heaven. It may be that you will have to live on earth twenty, or thirty, or forty years to glorify Christ; and, if so, be thankful for the privilege; but if you do not live another hour, your instantaneous death would not alter the fact that he that believeth in the Son of God is meet for heaven. Surely, if anything beyond faith is needed to make us fit to enter paradise, the thief would have been kept a little longer here; but no, he is, in the morning, in the state of nature, at noon he enters the state of grace, and by sunset he is in the state of glory. The question never is whether a death-bed repentance is accepted if it be sincere: the question is—Is it sincere? If it be so, if the man dies five minutes after his first act of faith, he is as safe as if he had served the Lord for fifty years. If your faith is true, if you die one moment after you have believed in Christ, you will be admitted into paradise, even if you shall have enjoyed no time in which to produce good works and other evidences of grace. He that reads the heart will read your faith written on its fleshy tablets, and he will accept you through Jesus Christ, even though no act of grace has been visible to the eye of man.
I conclude by saying that this is not an exceptional case. I began with that, and I want to finish with it, because so many demi-semi-gospellers are so terribly afraid of preaching free grace too fully. I read somewhere, and I think it is true, that some ministers preach the gospel in the same way as donkeys eat thistles, namely, very, very cautiously. On the contrary, I will preach it boldly. I have not the slightest alarm about the matter. If any of you misuse free-grace teaching, I cannot help it. He that will be damned can as well ruin himself by perverting the gospel as by anything else. I cannot help what base hearts may invent; but mine it is to set forth the gospel in all its fulness of grace, and I will do it. If the thief was an exceptional case—and our Lord does not usually act in such a way—there would have been a hint given of so important a fact. A hedge would have been set about this exception to all rules. Would not the Saviour have whispered quietly to the dying man, "You are the only one I am going to treat in this way"? Whenever I have to do an exceptional favour to a person, I have to say, "Do not mention this, or I shall have so many besieging me." If the Saviour had meant this to be a solitary case, he would have faintly said to him, "Do not let anybody know; but you shall to day be in the kingdom with me." No, our Lord spoke openly, and those about him heard what he said. Moreover, the inspired penman has recorded it. If it had been an exceptional case, it would not have been written in the Word of God. Men will not publish their actions in the newspapers if they feel that the record might lead others to expect from them what they cannot give. The Saviour had this wonder of grace reported in the daily news of the gospel, because he means to repeat the marvel every day. The bulk shall be equal to sample, and therefore he sets the sample before you all. He is able to save to the uttermost, for he saved the dying thief. The case would not have been put there to encourage hopes which he cannot fulfil. Whatsoever things were written aforetime were written for our learning, and not for our disappointing. I pray you, therefore, if any of you have not yet trusted in my Lord Jesus, come and trust in him now. Trust him wholly; trust him only; trust him at once. Then will you sing with me—
"The dying thief rejoiced to see
That fountain in his day,
And there have I, though vile as he,
Washed all my sins away."
"The dying thief rejoiced to see
That fountain in his day,
And there have I, though vile as he,
Washed all my sins away."