The question of the possibility of sudden conversion is generally argued with too much excitement on both sides to allow the facts to be recognised. Among us there may, in one sense, be said to be no such thing. Suppose anyone reading this page, who may know that he has not yet with his whole heart and soul turned to God, were to do so before turning the next leaf, would this be a sudden conversion? Why, the preparation for it has been going on for years. What has been the intention of all the religious instruction which you have received from your childhood, of the prayers offered on your behalf of the appeals which have moved you, of the strivings of God's Spirit, but to lead up to this result? Though your conversion were to take place this very hour, it would only be the last moment of a process which has gone on for years. Yet in a sense it would be sudden. And why should it not? What reason is there why your return to God should be further postponed? There are two experiences in religion which require to be carefully distinguished: there is the making of religious impressions on us by others from the outside--through instruction, example, appeal and the like; and there is the rise of religion within ourselves, when we turn round upon our impressions and make them our own. The former experience is long and slow, but the latter may be very sudden; and a very little thing may bring it about.
Another way in which it is possible to minimise the greatness of this conversion is by questioning the guilt of the man.[3] When he is called a thief, the name suggests a very common and degraded sinner; but it is pointed out that "robber" would be the correct name, and that probably he and his companion may have been revolutionaries, whose opposition to the Roman rule had driven them outside the pale of society, where, to win a subsistence, they had to resort to the trade of highwaymen; but in that country, tyrannised over by a despotic foreign power, those who attempted to raise the standard of revolt were sometimes far from ignoble characters, though the necessities of their position betrayed them into acts of violence. There is truth in this; and the penitent thief may not have been a sinner above all men. But his own words to his companion, "We receive the due reward of our deeds," point the other way. His memory was stained with acts for which he acknowledged that death was the lawful penalty. In short, there is no reason to doubt either that he was a great sinner or that he was suddenly changed. And therefore his example will always be an encouragement to the worst of sinners when they repent. It is common for penitents to be afraid to come to God, because their sins have been too great to be forgiven; but those who are encouraging them can point to cases like Manasseh, and Mary Magdalene, and the thief on the cross, and assure them that the mercy which sufficed for these is sufficient for all: "The blood of Jesus Christ, God's Son, cleanseth us from all sin."
The fear of those who endeavour to minimise the wonderfulness of this conversion is lest, if it be allowed that a man of the worst character could undergo so complete a change in so short a time on the very verge of the other world, men may be induced to put off their own salvation in the hope of availing themselves of a death-bed repentance. This is a just fear; and the grace of God has undoubtedly been sometimes thus abused. But it is an utter abuse. Those who allow themselves to be deceived with this reasoning believe that they can at any moment command penitence and faith, and that all the other feelings of religion will come to them whenever they choose to summon them. But does experience lead us to believe this? Are not the occasions, on the contrary, very rare when religion really moves irreligious men