into which so many of them have fallen such complaints will diminish. For all human experience proves that the preaching that appeals to fear of punishment as well as to hope of reward is the preaching that is really effective--is the preaching of all the great preachers of the past and the present--is the preaching that moves." The statement of the text is exceedingly plain and the teaching is unquestioned. It is a good thing for us to-day to understand what sin is, for if we have a wrong conception of sin it naturally follows that we shall have a wrong conception of the atonement. Without an understanding of sin there is no sense of guilt, and without the sense of guilt there is no cry for pardon. The best definitions that I have ever found for sin are written in the word of God. I 1. "Whosoever committeth sin transgresseth also the law: for sin is the transgression of the law" (1 John 3:4). The word "transgression" means to go across. Does your life parallel God's law or cross it? Your answer to this question determines the measure of your sin. You have only to read the ten commandments and try to mold your life by them to find your answer. Better still, you have only to read these commandments in the light of Jesus' interpretation, where the look of lust is adultery and anger without cause is murder, to see how far short you have come; and if this is true certainly you are a sinner, and the text is for you. "The wicked shall not be unpunished." 2. "All unrighteousness is sin; and there is a sin not unto death" (1 John 5:17). Righteousness means right relations with God. You may make ever so strong a claim to right living and speak ever so vehemently concerning the good that you are accomplishing in the world, but the first question for you to settle is this, What is your relation to God and what have you to say with reference to your acceptance or rejection of Jesus Christ? It is a solemn thought that whatever we do counts for nothing if our relation to God be wrong, while the little that we may do may count for much if we have taken the right position before him. 3. "Therefore to him that knoweth to do good, and doeth it not, to him it is sin" (James 4:17). Omission, according to this scripture, is sin; neglected opportunity is sin, shirking responsibility is sin, refusing to obey God is sin; and so when I ask you about being a Christian, if it is best and right and you acknowledge that it is, then if you are not a Christian, this very fact is in itself sin, for when one knows the right and refuses to do it he is a sinner, and the text is true--"The wicked shall not be unpunished."