1 sn Both references to these things are plural, so more than the temple’s destruction is in view. The question may presuppose that such a catastrophe signals the end.
2 sn Most of the roofs in the NT were flat roofs made of pounded dirt, sometimes mixed with lime or stones, supported by heavy wooden beams. They generally had an easy means of access, either a sturdy wooden ladder or stone stairway, sometimes on the outside of the house.
3 sn The nature of the judgment coming upon them will be so quick and devastating that one will not have time to come down or go inside to take anything out of his house. It is best just to escape as quickly as possible.