Confession is a far more important category than we realize–even for Protestants.
First, confession gives us a chance to hear Divine love spoken to us in real time. As social creatures, this is incredibly important.
But Second, confession fundamentally reshapes how we think about community. When we confess and name ourselves as outsiders and are welcomed back as insiders precisely in that moment this completely undermines our instinct to scapegoat and drive others away.