84 If these things happened when He gave up the ghost, why should we think them incredible when He shall return to judgment? Especially since this earlier resurrection is a pledge of that future resurrection, and a pattern of that reality Which is to come; indeed, it is rather itself truth than a pattern. Who, then, at the Lord's resurrection opened the graves, gave a hand to those who were rising, showed them the road to find the holy city? If there was no one, it was certainly the Divine Power which was working in the bodies of the dead. Shall one seek for the aid of man where one sees the work of God?
Source: On the Death of Satyrus (New Advent)