Piety; godly reverence is a divine quality that should be easily noticeable in you as a Christian. The Lord expects every one of his kids to handle themselves in a godly manner. There are things you should do that mark you out as a godly person. Take praying for example; not everyone who prays is essentially a Christian, yet every Christian ought to pray to God regularly.
By virtue of your new birth, you already have the righteousness of God in you. But you must express your righteousness outwardly. You must demonstrate certain qualities of being devoted to God and to spiritual things. Your words and actions must be such that people can look at you and say, “That girl (or guy) has got to be a Christian.”
Such godly activities that stand you out as a Christian include praying, fasting, studying the Word, fellowshipping with other Christians, soul winning, bold confessions of God’s Word, etc. Apart from the things you do as a mark of your piety, there’re things you shouldn’t do as well. For example, there are places you shouldn’t be found in; there are words (profanity) that shouldn’t come out of your mouth; they're just certain things that shouldn’t be found in your character as a godly person. Even the way you dress should have some piety to it. There’s a decency that goes with being a child of God, and that decency must reflect in every aspect of your life.
