Chi Rho symbol representing Christ.

Come, My people, enter your chambers and shut the doors behind you; hide yourselves for a little while, until the wrath has passed.” Isaiah 26:20 (translated from Hebrew). “Those are the ten tribes who were taken into exile… They took counsel among themselves to leave the heathen nations and travel to a distant land where no one had ever lived before, so that they could keep their laws in secret. They went through a narrow passage and journeyed for a year and a half, and that land is called Arzareth.”
— 2 Esdras 13:40–45 (translated from Greek/Latin) “There I saw the dwellings of the righteous and the places of rest for the holy. My eyes saw where they dwell with the angels, and their rest is with the faithful. They are preserved there forever.”
— 1 Enoch 39:4 (translated from Ethiopic)