Every truth has two sides. It is well to look at both before we commit ourselves to either.
When you hear both sides of the story before deciding it is more justifying to both parties. When Marie* comes to me complaining about Harriet* and her friends, Marie always puts herself in a better light. Harriet will give me the other side of the story. The legal system brings both parties to court to tell their sides of the tale before judging the case. In my own life, before taking sides in an argument, I can investigate and find out who wronged whom and who might be completely unrelated to the disagreement, etc.
* Made up names*
faith, family, friends, and food <3