1 Chronicles 21:18

“On that day Gad went to David and said to him, “Go up and build an altar to the Lord on the threshing floor of Araunah the Jebusite.””

Parallel account of David being instructed to build an altar on the threshing floor.

“David built an altar to the Lord there and sacrificed burnt offerings and fellowship offerings. He called on the Lord, and the Lord answered him with fire from heaven on the altar of burnt offering.”

Describes David's obedience and God's response at the altar.

“Then God said, “Take your son, your only son, Isaac, whom you love, and go to the region of Moriah. Sacrifice him there as a burnt offering on a mountain I will show you.””

Links to the choice of the Temple Mount (Moriah) as the location for sacrifice.

“Then Solomon began to build the temple of the Lord in Jerusalem on Mount Moriah, where the Lord had appeared to his father David. It was on the threshing floor of Araunah the Jebusite, the place provided by David.”

Identifies the threshing floor as the future site of the Temple.

“Then David said, “This is the temple of the Lord God, and this is the altar of burnt offering for Israel.””

David's declaration regarding the site as the location for the temple.