The body is a temple of God the Holy Spirit. So the Body is sacred prior to the first death. Upon the first death, the soul and spirit are surrendered to God, and God the Holy Spirit no longer indwells the body. It might then be argued it is no longer sacred, although if not sacred, why would there also be a resurrection?.
Note the admonition against sexual immorality, it not only defiles the soul, it defiles the body of the believer who is one with an adulterer, and our mind is to be one with Christ.
Re 1Cor 6
Thank you, Cvengr, for posting the scriptural clarification. To comprehend the Archbishop's words, it is important to look at it through a catholic lens. According to the Catechism of the Catholic Church:
The bodies of the dead must be treated with respect and charity, in faith and hope of the Resurrection. The burial of the dead is a corporal work of mercy;92 it honors the children of God, who are temples of the Holy Spirit.
cf: 92 Cf. Tob 1:16-18/
Notice the reference is to the Book of Tobit. Only the Protestant Bible removed the Book of Tobit from their bible. But let's see what Tobit 1 says on this topic.
Courage in Burying the Dead.
17 h I would give my bread to the hungry and clothing to the naked. If I saw one of my people who had died and been thrown behind the wall of Nineveh, I used to bury him.