This scripture encourages the believer to trust and hope in the mercy of God AT ALL TIMES! It does not say, "If any man is holy, prayerful, and always faithful, he has an advocate;" but it says, "If any man SIN, he has an advocate with the Father." It does not say, "If any man sins, he forfeits his right to Christ's advocacy." Grace that can be forfeited because of human failure is not grace at all. Mercy that is conditioned upon the merit of the creature is not mercy at all. If my title to glory rests upon my works, either BEFORE OR AFTER conversion, it is a total failure. This scripture declares that at all times, under all circumstances, Jesus Christ is our righteousness, our sanctification, our advocate, and our redemption. So when I sin, when I consider my past or present and come creeping to my closet with a guilty conscience and an aching heart, I can rejoice in the mercy of my Father; for I have an advocate – JESUS CHRIST THE RIGHTEOUS!