What is church? Church is neither a building, nor an organisation. Church is a living, vibrant organism (not organisation) full of life and zest. While Jesus was on this earth, his physical body that walked on this earth represented God to humanity.As long as Jesus was on this earth, He was the light of the world (John 9:5) by radiating the life of God (John 1:4,5). Now we are called called to be the light of the world (Matt 5:14). In the New Testament era, we cannot reflect God fully to the world only as individuals. We are called to be a body of believers connected to the head and to one another.