Christ's perfect righteousness atones and pays for our sins. This righteousness is imputed to us by grace and credited to us as a result of faith given to us. This justification by faith alone, and not the result of works, was the essence of the "genuine" Lutheran reformation over 500 years ago. At that time, a "radical" reformation was occurring also, that was focused on anti-Rome Catholicism. Recently, versions of pietism and American Evangelical Christianity have risen emphasizing "what you do for Christ", not "what Christ has done for you". The "genuine" Lutheran reformation confesses against these recent movements that have little mention of Christ alone.
Within American Evangelicalism, the Christ-centered faith has morphed into a "works righteousness" faith. In Ephesians 4:1-16, Paul urges Christians to walk in a manner to which we have been called, in a unity of the Spirit in a bond of peace where forgiveness flows from God through us to one another, one Lord, one faith, one baptism--- not different faiths. Christ ascends to heaven, leading us as His captives and giving us gifts. We truly have a "friend in high places", Christ, who fills all in all. Unity of faith is what we must strive to attain while we grow from children into full manhood. We are to grow up in every way into Christ who is our head. This process is our sanctification. Let us build one another up in love, seeking Godly cooperation. This life is no longer amassing wealth for us and our projects. It is no longer about the fleeting pursuits of pleasures. It is not about squeezing the last moments out of this life that we can nor is it about a life of a "golden" retirement. The essence of this life is that we would build one another up, first and foremost in the unity of faith, as taught in the Scriptures, then build one another up in the knowledge of God and His Son, all done in truth and in love.