who has saved us and called us with a holy calling, not according to our works, but according to His own purpose and grace which was granted us in Christ Jesus from all eternity,
We have been called by the grace of God. It is not according to our works. The thing that separates Christianity from every other religion and belief system in the world is the grace of Almighty God. Through Jesus salvation is by grace through faith. When we place our faith and trust in Jesus Christ we are born again and it is a supernatural work of the Holy Spirit. Every other religion in the world requires some sort of work or performance on the part of the once drawing near. But in Christ we simply need to receive. When Jesus cried it is finished, that is exactly what it meant. The penalty for sin has been paid and the requirements of the law have been fulfilled. Jesus did not come to destroy the law, He came to fulfill the law. Let us rest in Him and focus our hearts upon His grace and love for us.