Cite your references that our bodies are not ours.  I can cite my references that our bodies are gifts to us by God.  They are NOT on LOAN to us [as if God would recycle them and give them to somebody else].  In Sacred Scripture, we are told that God will raise our 'mortal bodies' and we will be resurrected.

From the Letter to the Philippians [3:20-21]

Brothers and sisters;
Our citizenship is in heaven, and from it we also await a savior,
the Lord Jesus Christ.
he will change our lowly body to conform with his glorified Body
by the power that enables him also to bring all things into
subjection to himself. 


This is ONE of many reading read at funeral liturgies, which
I have read many, many times at funerals.