You bless them by saying, “You told me your sins, without trying to hide them, and now I forgive you.”
When Jesus saw Nathanael coming toward him, he said, “Here is a true descendant of our ancestor Israel. And he isn't deceitful.”
They never tell lies, and they are innocent.
We can be proud of our clear conscience. We have always lived honestly and sincerely, especially when we were with you. And we were guided by God's gift of undeserved grace instead of by the wisdom of this world.
Sin was in the world before the Law came. But no record of sin was kept, because there was no Law.