If we say that we haven't sinned, we make him a liar, and his word is not in us.
GOD IS LIGHT, and in him is no darkness at all:" and consequently he cannot have fellowship with darkness. God is light, that is purity: and as the thrice Holy One he can hold no communion with iniquity. God is light, that is knowledge, for all things are known unto the Lord, and with ignorance he has no affinity. God is light, that is truth, for he can neither err, nor break his word, and therefore he cannot smile on anything that is false. We are constantly erring, first on this side and then on that, for there is darkness in us; God is light essentially, and it is not possible for his nature to be affected by either impurity or error. Out of this attribute of his nature arises the fact that the Lord always deals with things as they are. Man invents fictions, but God creates facts. We conceive of things as they appear, but God sees them as they exist. "Man looketh at the outward appearance, but God looketh at the heart." The dress of things impresses us, but all things are naked and open before  him. The Lord never misrepresents, nor has fellowship with misrepresentation. We are for ever hurrying about with our paint and varnish and tinsel, laboring to make the meaner thing appear equal to the more precious, and spending our skill in making the sham seem as brilliant as the reality, but all this is contrary to the way of the Lord. Everything is true in God, and everything is seen in its reality by his all-discerning eye. Because he is light, he deals with things in the light, treating them as they are. If God is to deal graciously with us, we must each one stand in the light, and present ourselves before him as we are. If there be upon our lip a false word, or in our heart a false thought, or in our mind a knowingly false judgment, so far we are out of the sphere in which God can have fellowship with us. "If we say that we have fellowship with him, and walk in darkness, we lie, and do not the truth." Our tendency to be false is illustrated in the chapter before us, for we find three grades of it there. There is first  the man who lies: "If we say we have fellowship with him, and walk in darkness, we lie, and do not the truth." We say and do that which is untrue if while abiding under the influence of sin and falsehood we claim to have fellowship with God. If this tendency is let alone and unchecked, you will find the man growing worse and doing according to the eighth verse, wherein it is written, "We deceive ourselves." Here the utterer of the falsehood has come to  believe his own lie. he has blinded his understanding and befouled his conscience till he has become his own dupe. Falsehood has saturated his nature, so that he puts darkness for light and light for darkness. This is at once his sin and his punishment; he closed his eyes so long that at length he has become stone blind. He will soon reach the complete development of his sin, which is described in the tenth verse, when the man, who first lied, and then secondly, deceived himself, becomes so audacious in his falseness as to  blaspheme the Most Holy by making him a liar. It is impossible to say where sin will end; the beginning of it is as a little water in which a bird may wash, and scatter half the pool in drops, but in its progress sin, like the brook, swells into a torrent deep and broad. We must, therefore, judge ourselves very severely, lest our natural tendency to falseness should lead us to false assertion as to ourselves, and then should urge us on till we delude ourselves into the foolish belief that we are what we proudly represent ourselves to be, and then should dare in the desperation of our pride to think God himself untrue. I intend at this time, as God may help us, first, to  consider the three courses which lie open before us in the text; then, in the second place, to  consider how to follow in the right course; and thirdly, it shall be my endeavor to lead you to  consider why you should do so.  I will suppose that we are all earnestly anxious to be in fellowship with God. We cannot bear to be his enemies any longer; distance from him has become distasteful to us; we long, like the prodigal son, to arise and go to our Father, that we may hereafter dwell in our Father's house. Our deceitful heart suggests to us, first, that we should  deny our present sinfulness, and so claim fellowship with God, on the ground that we are holy, and so may draw near to the Holy God. It is suggested to our hearts that we should say that "we have no sin," and are neither guilty by act nor defiled in nature. This is a bold assertion, and he who males it has no truth in him, but at different times and by very different persons it has been made and stoutly maintained. There are many ways in which this proud saying has been justified. Some have arrived at it by denying altogether the doctrine of original sin, "as the Pelagians do vainly talk." They will not allow that there is a fault and natural corruption in the nature of every man, whereby man is very far gone from original righteousness, and is of his own nature inclined to evil. Now we, I trust, will ever be clear from this doctrinal error, for we know, as David did, that we were shapen in iniquity, and are 