While Hebrews is believed to have written by Paul, some feel that the author was actually Barnabus. No one really knows except Christians (well, most) believes it to be inspired by God.
But all this does make one wonder why the Church doesn't view believers, living now here on earth, as saints when the evidence in scripture calls them that?
There are clear problems calling everyone who professes himself to be Christian a Saint.
Frankly even if you open it up to all true beleivers you don’t really know explicitly until they actually end up in heaven do you?