Proverbs 28:13 “He who conceals his transgressions will not prosper, But he who confesses and forsakes them will find compassion.”
To confess is to take something from the world of personal darkness and bring it into the light of YHVH to be repented of and cleansed from. When we conceal a matter that needs to be confessed, we are attempting to hide our sins ourselves. We in fact fashioning fig leaf garments. We are in capable of paying for our sins and living through it. We are also incapable of living with our unconfessed sins.