1 Chronicles 21:18-20

Young's Literal Translation

¹⁸ And the messenger of Jehovah spake unto Gad, saying for David, `Surely David doth go up to raise an altar to Jehovah in the threshing-floor of Ornan the Jebusite.'

¹⁹ And David goeth up by the word of Gad, that he spake in the name of Jehovah.

²⁰ And Ornan turneth back, and seeth the messenger, and his four sons [are] with him, hiding themselves, and Ornan is threshing wheat.