Rom. 3:23 For all have sinned, and come short of the glory of God; 24 Being justified freely by his grace through the redemption that is in Christ Jesus: The need for justification is due to a life that COMES SHORT of the glory of God. To "come short" refers to sins of omission. Or as James says if we violate the law of God in only one point we violate it in all points as any sin transgresses the whole law (James 2:10-11). Hence, the only way not to come under the condemnation of the Law is to keep every point. To "come short" of that is to come short of the righteousness that characterizes the "glory of God" or God's own personal HOLINESS which is His glory. Romans 3:23 is introduced by "the righteousness OF GOD" - Rom. 3:21-22. 20 Therefore by the deeds of the law there shall no flesh be justified in his sight: for by the law is the knowledge of sin. 21 But now the righteousness of God without the law is manifested, being witnessed by the law and the prophets; 22 Even the righteousness of God which is by faith of Jesus Christ unto all and upon all them that believe: for there is no difference: There are two basic classifications of sin: (1) sin of commision; (2) sins of omission. The righteousness required to be justified before God is a a life of righteousness that does not "come short" (without sins of omission) of God's personal righteousness which is His "glory" or the Holiness that characterizes His own Personal righteousness. May I ask you where you can obtain a life of righteousness that does not "come short" of God's own personal righteousness or holiness in order to be justified in His sight? Can you point to any person in the Bible whose own personal life never came "short" of the glory of God? A life of righteousness where no sins of omission can be found? Are you going to tell me that a unholy life (life of omission) is the basis for your ultimate justification?