By Richard Sibbes
…Justification is not only a sentence of pardon, but it is also as in Roman 5:15, a title to life everlasting:
“For if by one man’s offence death reigned by one, much more they who receive the abundance of grace, and of the gift of righteousness, shall reign in life by Jesus Christ.”
Where God pardons, he advances. So if Satan shall come to shake my title, to shake this faith, assure him that Christ came to save sinners. If he object, “your title is nothing, it is stained, being that you have so many sins and corruptions within your mortal body.” answer him, “This just serves my faith for comfort, to show me that my title is in Christ.” my strength and ground of comfort is in him, not in myself.
See one parallel example, how David lived this life of faith in justification:
“If you, O Lord, should mark iniquities, who shall stand?(Psalm 130:3)
There he pronounces death on himself unless he be acquitted, and so it is in our case. But then comes the appeal:
“But mercy is with you, that you may be feared.”
Think on this yourself. If a man is sound on this point, all he does is nothing. This is all in all. Our sanctification without this is nothing. This is the ground of all. Be careful of this, to look to Christ’s obedience, life, death, and sufferings, and those comforts flowing from our interest therein.
Modernized in few places by this site.