Will God ever accuse Christians of sins that were forgiven?
No. The moment a believer sins, forgiveness is applied, so God will never come back and accuse them of still having sin on their ledger. Their record has been wiped clean, and God's righteousness has been imputed to their account. This is grace, not license.
Les explains that if the Lord should come this very moment and a believer had done something wrong that forenoon without time to confess it, God will not say, wait a minute, you sinned and you haven't taken care of it. No. Les teaches that we are forgiven the moment we sin. People object that this sounds like license, but he insists it is not license; it is simply the grace of God. God will never come back at us and accuse us of still having sin on our ledger, because it has been wiped clean. Opposite that, the whole bankroll of heaven—God's righteousness—has been imputed to our account, as it says concerning Abraham.