Apostle John, after pointing to the necessity of hope of seeing Christ motivate a life of active purity (3). Like Thomas Watson asserted. Who that "Till sin be bitter, Christ will not be sweet," John reminds the believers, that though society might redefine what sin is, Christians should have a clear biblical definition of sin (4). In using biblical vocabularies define sin: as transgression against the law of God, as missing the mark of God's holy standards, as iniquity, as trespass but also, sin is unrighteousness (I Jn. 5v17). "If all unrighteousness is sin" this means that every thought, motive, word, action, or omission that falls short of God's holy character, God's righteous law, God's revealed will, and God's command to love others is sin before Him. Thus, when others dare to dilute and downplay the seriousness of sin, Christians must know the reality of sin, from which they (we) are saved.