What is justification according to Les's teaching from Romans?

Justification is the judicial act of God whereby He declares the sinner just as if they had never sinned. God cleanses the idolater as though he had never fallen before an idol, the drunkard as though he never drank, and the adulterer as though he never committed adultery.

Les teaches that justification is that judicial act of God whereby He declares the sinner just as if they had never sinned. He illustrates this by saying God cleanses the idolater as though he had never fallen down before an idol, justifies the drunkard as though he had never taken a drink, and justifies the adulterer as though he had never committed adultery. Les calls this the beauty of salvation by grace. He also notes that this is not a Pauline concept only, since the Lord Jesus Himself uses the term in John's Gospel.

1 Corinthians 6:11

And such were some of you: but ye are washed, but ye are sanctified, but ye are justified in the name of the Lord Jesus, and by the Spirit of our God.

How does justification apply to specific sinners like idolaters, drunkards, and adulterers?

Justification is God's judicial act whereby He declares a sinner just as if they had never sinned. The idolater is cleansed as though he never bowed to an idol, the drunkard as though he never drank, and the adulterer as though he never committed adultery. This is salvation by grace.