“Whoever conceals his transgressions will not prosper, but he who confesses and forsakes them will obtain mercy” (Proverbs 28:13)

Or as in Numbers 32:23, “Be sure your sin will find you out.” Attempting to conceal sin never works. Eventually, it is revealed and the longer we try and hide it, the more it negatively affects us. Keep short accounts. Be quick to confess and repent. Likewise, be quick to forgive others.