Meaning
David built an altar on Ornan's (Araunah's) threshing-floor (2Sam 24:18-24, 1Chr 21:18-27), which later became the site of the Temple (2Ch 3:1). David probably chose this place for his altar because it was on an elevation, and the ground was already level and prepared by rolling. Uzzah died near the threshing-floor of Nacon for touching the ark (2Sa 6:6). Ru reveals herself to Boaz on his threshing-floor (Ru 3:6-9).
Threshing-floors are in danger of being robbed (1Sa 23:1). For this reason, someone always sleeps on the floor until the grain is removed (Ru 3:7). In Syria, at the threshing season, it is customary for the family to move out to the vicinity of the threshing-floor. A booth is constructed for shade; the mother prepares the meals and takes her turn with the father and children at riding on the sledge.
The instruments of the threshing-floor referred to in 2Sa 24:22 were probably:
(1) the wooden drag or sledge, charuts or moragh, Arabic lauch eddiras;
(2) the fan (fork), mizreh, Arabic midra, for separating straw from wheat;
(3) shovel, meghraphah, Arabic mirfashat, for tossing the wheat into the air in winnowing;
(4) broom, maT'aTe', for sweeping the floor between threshing and for collecting the wheat after winnowing;
(5) goad, malmedh, Arabic messas;
(6) the yoke, `ol, Arabic tauk;
(7) sieve, kebharah, Arabic gharbal;
(8) dung catcher, Arabic milkat.