The Bible says that we are supposed to be holy because God is holy. So what is the definition of the word “holy”? It is this: dedicated or consecrated to God or a religious purpose; sacred. In another way of saying this, we are supposed to be set apart from the world and its ways but we should try to teach those around us about His ways. If not by our words then by our life and our actions. Being a Christian is supposed to be exactly that…holy and set apart to do the work of God while we can. So why aren’t many who profess to be Christians acting like Christ?
It is a good question to ask but I’m afraid the answer would be too laborious and it would require too many specifics. Why do I say this? Because there are many who profess Christ but they don’t possess Christ. Their Christianity is only genuine to them because they believe in Christ and they attend church occasionally but He hasn’t made a change in their lives because He was never invited in. They are a believer just as well as Satan is. He knows Who Jesus is and he knows that He exists but he chooses not to serve God or Jesus or the Holy Spirit in any way.
Knowledge of Jesus and God is a good thing but if you haven’t given your life and your heart to them so that you are changed by them, then your knowledge does your eternal life no good at all.
If you belong to Christ and He belongs to you, then your life will reflect Him and His character far more than it will reflect your ideas and your ways. If others can’t see Jesus in what you do and say, then it is possible that He doesn’t live in your heart just in your mind.