Definition of Sin
What is to bring the sinner to the knowledge of his sins unless he knows what sin is? The only definition of sin in the Word of God is given us in 1 John 3:4. "Sin is the transgression of the law." {Our High Calling 141.3}
Sin is an intruder, for whose presence no reason can be given. It is mysterious, unaccountable; to excuse it, is to defend it. Could excuse for it be found, or cause be shown for its existence, it would cease to be sin. Our only definition of sin is that given in the word of God; it is "the transgression of the law;" (1 John 3:4) it is the outworking of a principle at war with the great law of love which is the foundation of the divine government. {That I May Know Him 15.2}
4 (Rom. 3:20; see EGW on Gal. 3:24-26; Eph. 2:14-16). Only Definition of Sin.--"Sin is the transgression of the law." This is the only definition of sin. Without the law there can be no transgression. "By the law is the knowledge of sin." The standard of righteousness is exceeding broad, prohibiting every evil thing (MS 27, 1899). {7BC 951.3}
"Whosoever committeth sin transgresseth also the law: for sin is the transgression of the law." This is the only definition of sin given in the Holy Scriptures, and we should seek to understand what sin is, lest any of us be found in opposition to the God of heaven. {RH, July 15, 1890 par. 2}
A terrible doom awaits the sinner, and therefore it is necessary that we know what sin is, in order that we may escape from its power. John says, "Whosoever committeth sin transgresseth also the law; for sin is the transgression of the law." Here we have the true definition of sin; it is "the transgression of the law." How often the sinner is urged to leave his sins, and come to Jesus; but has the messenger who would lead him to Christ clearly pointed out the way? Has he clearly pointed out the fact that "sin is the transgression of the law," and that he must repent, and forsake the breaking of God's commandments? Christ will come to consume the false prophet, to sweep away the hosts of apostasy, to take vengeance on them that know not God, and that obey not the gospel of God; and it is of the highest importance to each one of us that we know the conditions by which we shall escape the sinner's doom. It is of the greatest moment that we understand the nature of our fall and the consequences of transgression. Man's conscience has become hardened by sin, and his understanding darkened by transgression, and his judgment has become confused as to what is sin. He has become benumbed by the influence of iniquity, and it is essential that his conscience be aroused to understand that sin is the transgression of God's holy law. He who does not obey the commandments of God is a sinner in the sight of God. {ST, June 20, 1895 par. 5}
Also see:
Review and Hearld, June 26, 1900 The Perfect
Standard.