Bible Verses About Grace: Justification By, Opposed to That by Works

Now to him that worketh is the reward not reckoned of grace, but of debt.

But to him that worketh not, but believeth on him that justifieth the ungodly, his faith is counted for righteousness.

And if by grace, then is it no more of works: otherwise grace is no more grace. But if it be of works, then is it no more grace: otherwise work is no more work.

Christ is become of no effect unto you, whosoever of you are justified by the law; ye are fallen from grace.