The temple in Jerusalem was destroyed in A.D. 70, and there is nothing about a great Christian temple in the New Testament—a place of grandeur and majesty to which we can point our non-Christian friends and say, “Look! Aren’t you impressed? Doesn’t this show how wonderful and mysterious and beautiful and true and good our God is?” What happened to the temple in the New Testament era? There is nothing like it, because the temple has become us. We Christians have together become the temple of the Holy Spirit. When you read the New Testament, you find that it’s not our church buildings but us, Christians. We Christians have together become the temple of the Holy Spirit.
So the community we live in will be given hope by those of us who live distinctive Christian lives, not by your church or mine, not by how similar we are to those around us (a common mistake Christians can make), but by how attractively different we are. That’s why we are to live the distinctive lives that we do—because we are God’s picture, God’s billboard, in our city.
From Mark Dever’s, The Gospel and Personal Evangelism, page 67.