NET
18 So the angel of the Lord told Gad to instruct David to go up and build an altar for the Lord on the threshing floor of Ornan the Jebusite.
Darby
18 And the angel of Jehovah commanded Gad to say to David, that David should go up and rear an altar to Jehovah in the threshing-floor of Ornan the Jebusite.
KJV
18 Then the angel of the LORD commanded Gad to say to David, that David should go up, and set up an altar unto the LORD in the threshingfloor of Ornan the Jebusite.