We admitted to God, to ourselves, and to another human being the exact nature of our wrongs.
When we constantly have to rationalize our behavior to get around a guilty conscience or to cover up for something, we begin to lose sight of how to accurately measure our lives. We may have cheated for so long that we now find it difficult to measure out the "exact nature of our wrongs." At this point, we may need an objective person to help us. We may have lost the ability to be impartial in our judgment.
God says, "Do not use dishonest standards when measuring length, weight, or volume" (Leviticus 19:35). The Lord demands fairness in every business deal. The book of Proverbs says, "The LORD demands accurate scales and balances; he sets the standards for fairness" (Proverbs 16:11). "So now, come back to your God. Act with love and justice, and always depend on him. But no, the people are like crafty merchants selling from dishonest scales-they love to cheat" (Hosea 12:6-7).
We should never underestimate the power of rationalization to warp our perspective on our sins. God requires impartial judgment, a task we may not be able to manage on our own. It is helpful and crucial to admit the exact nature of our wrongs to another human being. He should be able to see the blind spots in our lives better than we can. His perspective will help us adjust our understanding so that it better matches reality.
God's measure of success is different than ours; he calls us to honest confession.