Justification reminds us that saying ‘sorry’ earns us nothing. We ought to be sorry and fess up for our actions regardless of the consequences; this is simply our right duty. Saying ‘sorry’ is embracing the consequences as what we justly deserve. Never mind for just a moment that we will never come to the Lord except by His gracious calling. If we see our sins aright, when we come back to the Lord we ought to expect nothing but judgment for our actions and unbelief.
What is surprising is that we when come to the Lord he also wipes our sins away. This is the overabundant outpouring of his grace. Justification is a landslide of grace on top of his gracious welcoming us back in the first place. We have nothing to pay, but are now treated as if we were faithful like Jesus our whole lives. ‘Sorry’ earns us nothing; Jesus righteous life, death and resurrection have accomplished everything.