Remember that you are not saved by increased levels of holiness, however desirable it is that you should reach them. ...It is Christ who saves us-through faith. Your faith is a poor and crumbling thing, as is your spiritual service. Jesus Christ alone is qualified and able to save you because of what He has done.
Sinclair B. FergusonFor worship is, essentially, the reverse of sin. Sin began (and begins) when we succumb to the temptation, "You shall be as gods." We make ourselves the center of the universe and dethrone God. By contrast, worship is giving God his true worth; it is acknowledging Him to be the Lord of all things, and the Lord of everything in our lives. He is, indeed, the Most High God!
Sinclair B. FergusonThis, then, is the foundation of sanctification in Reformed theology. It is rooted, not in humanity and their achievement of holiness or sanctification, but in what God has done in Christ, and for us in union with him. Rather than view Christians first and foremost in the microcosmic context of their own progress, the Reformed doctrine first of all sets them in the macrocosm of God's activity in redemptive history. It is seeing oneself in this context that enables the individual Christian to grow in true holiness.
Sinclair B. Ferguson