Flight to Pella

Pella is the namesake for such places as Pella, Iowa, founded by Dutch Reformed Christians. The story of Pella is found in church history.

From Wikipedia:

The fourth-century Church Father Eusebius of Caesarea and Epiphanius of Salamis cite a tradition that before the destruction of Jerusalem in AD 70 the early Christians had been warned to flee to Pella in the region of the Decapolis across the Jordan River.

And when ye shall see Jerusalem compassed with armies, then know that the desolation thereof is nigh. [21] Then let them which are in Judæa flee to the mountains; and let them which are in the midst of it depart out; and let not them that are in the countries enter thereinto. [22] For these be the days of vengeance, that all things which are written may be fulfilled. [23] But woe unto them that are with child, and to them that give suck, in those days! for there shall be great distress in the land, and wrath upon this people. [24] And they shall fall by the edge of the sword, and shall be led away captive into all nations: and Jerusalem shall be trodden down of the Gentiles, until the times of the Gentiles be fulfilled.

-Luke 21:20-24

The whole body, however, of the Church at Jerusalem, having been commanded by a divine revelation given to men of approved piety there before the war, removed from the city to a certain town beyond the Jordan called Pella. Here, those who believed in Christ removed from Jerusalem as if holy men had abandoned the royal city itself and the whole land of Judea.

— Eusebius, Church History 3, 5, 3