I think we each should ponder William Wilberforce’s quotes below at to what Christianity is about especially his third statement. William was especially jealous to keep clear the right relationship between good works and justification.
Wilberforce said, "Christianity is:
1. a scheme "for justifying the ungodly" [Romans 4:5], by Christ's dying for them "when yet sinners" [Romans 5:6-8],
2. a scheme "for reconciling us to God"—when enemies [Romans 5:10];
3. and for making the fruits of holiness the effects, not the cause, of our being justified and reconciled."
Justification is the doctrine that God pardons, accepts, and declares a sinner to be "just" on the basis of Christ's righteousness (Rom 3:24-26; 4:25; 5:15-21) which results in God's peace (Rom 5:1), His Spirit (Rom 8:4), and salvation. Justification is by grace through faith in Jesus Christ apart from all works and merit of the sinner. Wikipedia
Holiness defined as being or the process of being separated unto God.
Or maybe I can put this into my own words that Christianity is bearing fruit(expressing inward and outward joy in loving Jesus) by letting(given up control) Jesus bare our sins(those things that we do/did not Glorify the Father) that through His gift (no anything we gave/give) of Grace which is a call that we hear in our hearts. The result shows the world around us we love Him. When you truly love someone or something it cannot be helped from being noticed. It is why telling someone you love them doesn’t work as well as the action of loving someone with a hug, kiss, a look and/or just being satisfied or well pleased pleased with them. A good example is that when I am most satisfied in Dean a huge smile comes across his face. This is how God must feel when we are satisfied in His Son.
God is most glorified, when we are most joyful in Him. So our life's purpose is to find JOY in knowing Jesus; He takes care of the rest(fruits).