The Uniqueness of Christianity is God's Righteousness by mere acceptance and not by effort of following the Laws. It is our choice to choose to be adopted and be re-birthed into the Family of God. But it is just the start of our new journey to fulfill the original purpose of God's creation of uniquely us.
Php 3:9 BBE And be seen in him, not having my righteousness which is of the law, but that which is through faith in Christ, the righteousness which is of God by faith:
i.e. To Do vs Done; Stress vs Peace; Insecure vs Secure Eternally
Do you want to hold on to God's hand or let God holds on to yours?