You are from the United States and you want to learn the Arabic language, right? The meaning of the word "Be honest with yourself and with others. Avoid lying and bad deeds ... I hope that my writing will be good because I am Arabic."
It depends, because if it was to someone it means get rid of your sins and means that you've made a horrible act or a mistake, not just related to religious as it is used in a broader range discribing someone's actions and then he has to be clean of these bar/horrible actions.