The phrase "honest confession" refers to openly admitting something without lying or hiding the truth. It means being truthful and sincere when discussing or acknowledging something. Full definition
What I saw was a brutally honest confession about how she felt. (skepticalob.com)
I'm not really looking for answers on how best to interpret these passages — just honest confessions about how they trouble or challenge you. (rachelheldevans.com)
Hearing this kind of heartfelt, honest confession from such a man is an amazing testament to the power of Positive Discipline. (heligirl.com)