When you are a Christian something happens to the old you. It's like someone flips a switch on your life, and you are completely changed. Things that never made sense before finally do, and others can't understand how it is you know the things you do. When you are a Christian the things that you used to take pride in no longer matter, what used to be entertaining does nothing but leave you empty, the things you used to feel seem so shallow and mundane.
When you know Jesus something happens to the old you. It's like your life finally has a purpose, and you can't wait to begin each new day. Things that used to seem unimagineable before begin to happen, and others can't understand the blessings in your life. When you know Jesus the people you used to ignore now take center stage, the fallen world brings your heart pain and you seek to bring redemption, a soul saved brings your spirit joy and you long to celebrate the eternal.
When you change your life something happens to the old you. It's like no one can recognize you anymore, and you can't even recognize yourself. Things that used to define you are changed, and others can't figure out what happened. When you change your life something happens to the people around you, they begin to notice something is different and want to know what it is, you no longer have to tell others about Jesus because they begin to ask you.
When you become the Light of the World something happens to the old you. It's like you are set apart, and others are drawn to you. Things that become a daily part of your life are so different from how everyone else lives, and others want to know how you do it. When you become the Light of the World people are drawn to you like a moth to the flame, the difference you make in another's life is done before you even open your mouth to speak, they no longer see you but see Jesus Himself.