Matthew 24:16-18
then those [of you] in Judea are to run away into the [nearby] mountains.
Mark 13:14-16
"But when you see that disgusting thing that causes total destruction [i.e., the Roman army. See Luke 21:20] standing where it ought not to be [i.e., surrounding the besieged city of Jerusalem], (let the reader understand [what is meant by this]), then those of you in Judea are to run away into the [nearby] mountains.
Luke 17:31-32
On that day, the person who is on a housetop [Note: This was a flat area where people retired for rest, prayer, etc., with its stairway on the outside], whose belongings are [still] in his house, is not to go down and [attempt to] take any of them away. And the person who is in a field [i.e., doing farm work], also is not to return [to his house].