A great quote from Milton Vincent's A Gospel Primer for Christians:
"The Cross exposes me before the eyes of other people, informing them of the depth of depravity. If I wanted others to think highly of me, I would conceal the fact that a shameful slaughter of the perfect Son of God was required that I might be saved. But when I stand at the foot of the Cross an am seen by others under the light of that Cross, I am left uncomfortably exposed before their eyes.
Indeed, the most humiliating gossip that could ever be whispered about me is blared from Golgotha's hill, and my self-righteous reputation is left in ruins in the wake of its revelations. With the worst facts about me thus exposed to the view of others, I find myself feeling that I truly have nothing left to hide.
Thankfully, the more exposed I see that I am by the Cross, the more I find myself opening up to others about ongoing issues of sin in my life. (Why should anyone be shocked to hear of my struggles with past and present sin when the Cross already told them I am a desperately sinful person?) And the more open I am in confessing my sins to fellow-Christians, the more I enjoy the healing of the Lord in response to their grace-filled counsel and prayers.
Experiencing richer levels of Christ's love in companionship with such saints, I give thanks for the gospel's role in forcing my hand toward self-disclosure and the freedom that follows."
What would the impact be on our churches, on our small groups, if we all lived in the good of this reality? When resting in the gospel, sharing about our flaws is not scary, but liberating.