Ethics in religion is about following a set of rules to be a good person. Different religions have different rules, but usually they all involve things like being kind to other people, being honest, and respecting your parents and elders. They might also tell you what you can and can't do, like not eating certain foods or going to certain places. It's important to be a good person because it means you're living a life that follows the rules of your religion and shows respect for others.