True humility recognizes who God is and who one is in relationship to God and others. Piety is one of the seven gifts of the Holy Spirit. We want to practice the faith that we are professing as our response to what God has revealed. The Lord Jesus teaches that the proper motivation for being pious is to glorify God in our thoughts, words, and actions. It is essential that the proper interior dispositions of faith are reflected in our exterior demonstrations of faith. Otherwise, we will construct a false image of being pious. That is hypocrisy. It is not pompous to be pious if we have the right perspective.