What does the book of Romans tell us about the Christian faith?
In chapters 1-3 we learn that every person is declared guilty before God because of sin. The law condemns us utterly as sinners. Not one person is adjudged innocent by God’s perfect standard. There is no salvation in the law. It simply points out our guilt and depravity.
Rom 3:20 Therefore by the deeds of the law there shall no flesh be justified in his sight: for by the law is the knowledge of sin.
Because of our hopeless state, God had to do something to save us. To do this, God chose to save us, not by the righteousness of the law, but by the abundance of His grace through the redemption that is in Christ Jesus. The sacrifice of Christ on the cross, the shedding of His pure and blameless blood, paid the price for us. God, who is absolutely just, was now able to justify the guilty, because a payment was made to sufficiently cancel the sin debt for every person who ever lived.