Jesus was the suitable priest because He had an indestructible life
The resurrection was inevitable for the son of god could not be destroyed. The spirit of god within him - that is his trust of his father's love for him made him indestructible.
Thus in his priestly ministry he has made us too indestructible . For we have the same Spirit and the same ministry and are joined into eternity
Death and decay may compress us , but it cannot extinguish what has now become eternal