Tradition
St. Gregory the Great
Dialogues
The Fourth Book › Chapter Twenty: How Sometime the Merit of the Soul Is Not So Truly Declared at the Time of the Departure As Afterward.
Chapter Twenty: how sometime the merit of the soul is not so truly declared at the time of the departure as afterward.
But here we have to understand, that sometime the merit of the soul is not so truly known at the time of the departure, as it is afterward: and therefore divers holy martyrs have suffered many great torments at the hands of infidels: who afterwards, at their dead bones, were famous for signs and miracles, as before hath been noted.
Source: Dialogues (Tertullian.org)