There are various synonyms for the phrase "pay the penalty for," all of which convey a similar idea. One could say "face the consequences of," "suffer the repercussions of," "bear the brunt of," or "take the fall for." These phrases all suggest that someone is experiencing negative outcomes as a result of their actions, behavior, or decisions. Whether it's in a legal, personal, or professional context, paying the penalty for one's actions can be a painful and difficult experience. However, acknowledging one's shortcomings and making amends can ultimately lead to growth and positive change.