Doctrine of Justification is heart of Christian theology

"For we maintain that a man is justified by faith apart from observing the law" (Romans 3:28).

http://www.themorningsun.com/articles/2010/10/16/life/srv0000009672224.txt

This verse from St. Paul's Epistle to the Romans reveals the heart of Christian theology. The doctrine that we are justified (declared righteous, or saved) by grace alone, through faith alone, in Christ alone, is the central and vital organ in the body of Christian theology; the organ that pumps the blood throughout that body to give life to all other Christian doctrines. As we say in Lutheran circles, the doctrine of justification is the central article of the Christian faith, the article upon which the Christian Church stands or falls.