'Threshing floor' in the Bible

As they approached Chidon's threshing floor, Uzzah put out his hand to steady the ark, because the oxen had stumbled.

So the angel of the ORD remained standing near the threshing floor that belonged to Ornan the Jebusite. David looked up and saw the angel of the LORD standing between earth and heaven, with a drawn sword in his hand stretched out over Jerusalem. Then David and the elders, clothed in sackcloth, fell on their faces.

The angel of the LORD told Gad to tell David that David was to go up and build an altar to the LORD on the threshing floor that belonged to Ornan the Jebusite.

As David approached Ornan, Ornan looked around and observed David, left the threshing floor, and fell to the ground before David with his face on the ground.

David told Ornan, "Give me the threshing floor as a site to build an altar to the LORD on it. Give it to me at its full price, so the plague may be averted from the people."

From that time on, after David had observed that the LORD had answered him at the threshing floor of Ornan the Jebusite, he made his sacrifices there.