This is what salvation is all about; it’s about letting Jesus change where He resides, (which is in your heart, mind, and soul). The changes come from the inside out — they start within you, and then spread out and touch every life that comes into contact with your own.
Living a life with Christ guiding you through the Holy Spirit changes who you are, how you react, and how you perceive everything going on around you. The bible says you become a new person for a reason.
17 Therefore, if anyone is in Christ, he is a new creation; old things have passed away; behold, all things have become new. 2 Corinthians 5:17
Church enhances and encourages these new changes inside of us. The leadership, teachings, and focus of the body of Christ should fall directly in line with the new creation God is performing and creating daily within us.