'Flee to the Mountains' in the Bible

then those who are in Judea must flee to the mountains.

“But when you see the abomination of desolation standing where it should not be (let the reader understand), then those who are in Judea must flee to the mountains.

Then those who are in Judea must flee to the mountains, and those who are in the midst of the city must leave, and those who are in the country must not enter the city;