But, remember, there is no prescription about depth or amount or length of time during which this sorrow shall be felt. If, on the one hand, it is essential, on the other hand there are a great many people who ought to be walking in the light and the liberty of God's Gospel who bring darkness and clouds over themselves by the anxious scrutinising question: 'Is my sorrow deep enough?' Deep enough! What for? What is the use of sorrow for sin? To lead a man to repentance and to faith. If you have as much sorrow as leads you to penitence and trust you have enough. It is not your sorrow that is going to wash away your sin, it is Christ's blood. So let no man trouble himself about the question, Have I sorrow enough? The one question is: 'Has my sorrow led me to cast myself on Christ?' II. Still further, look now for a moment at the next stage here. 'Godly sorrow worketh repentance.' What is repentance? No doubt many of you would answer that it is 'sorrow for sin,' but clearly this text of ours draws a distinction between the two. There are very few of the great key-words of Christianity that have suffered more violent and unkind treatment, and have been more obscured by misunderstandings, than this great word. It has been weakened down into penitence, which in the ordinary acceptation, means simply the emotion that I have already been speaking about, viz., a regretful sense of my own evil. And it has been still further docked and degraded, both in its syllables and in its substance, into _penance_. But the 'repentance' of the New Testament and of the Old Testament--one of the twin conditions of salvation--is neither sorrow for sin nor works of restitution and satisfaction, but it is, as the word distinctly expresses, a change of purpose in regard to the sin for which a man mourns. I cannot now expand and elaborate this idea as I should like, but let me remind you of one or two passages in Scripture which may show that the right notion of the word is not sorrow but changed attitude and purpose in regard to my sin.