And let him that is on the house top
On the battlements of the house, either for diversion or devotion:
not go down into the house;
in the inner way by the stairs, or ladder within doors:
neither enter therein;
being come down from the top of the house, by stairs, or a ladder without, which was usual:
to take any thing out of his house;
to take care of his goods, or take any thing along with him, that might be useful in his flight, and journey, and stay abroad; (See Gill on Matthew 24:17).