If following the New Testament pattern were a matter of option, there would need be no discussion whatsoever about following this model. But here is why it matters:

Do you not know that you are God’s temple and that God’s Spirit lives in you? If someone destroys God’s temple, God will destroy him. For God’s temple is holy, which is what you are (1 Cor. 3:16-17).

Read the whole article at the link above.