He has discovered that it was taken to Carthage, Constantinople and Algeria before being hidden in the Judaean wilderness, beneath the Monastery of Theodosius.
Uh, "WILL herald" is more like it - provided that the Catholic Church releases that which doesn't belong to it - I don't think that G-d has a Statute of Limitations on stealing, and the possession of property known to have been stolen from another is, well, stealing.
The Catholic Church does NOT hold these articles. They were sent to an Orthodox Abbey near Bethlehem. They have been in the Holy Lands in 455 AD.
We don't have it.
And never have.
Not 'bearing false witness against thy neighbor' is right up there with 'thou shalt not steal'
...the possession of property known to have been stolen from another is, well, stealing.
Almost.
Property taken by conquest or derring-do is called Booty or Loot or Plunder or Spoil, and there's not a darn' thing wrong with that.
For example, most of the treasures of the Tabernacle (including the Ark of the Covenant) were made of goods "borrowed" by the Children of Israel from the Egyptians, on a rather permanent basis. (cf Exodus 12:35-36)