Through this parable Jesus teaches that salvation is not found in comparative righteous. You can’t compare yourself, by looking down on others, and conclude you are justified. You can’t compare yourself, by looking up to others, and conclude you are not justified. You can read the written sermon here: https://www.sermoncentral.com/sermons/the-pharisee-and-the-tax-collector-allan-quak-sermon-on-forgiveness-251073