In 1 Chronicles 21:11, Gad had offered David three punishment options; this earlier command sets the context for the angel's instruction to build an altar.

In 1 Chronicles 21:15, the angel stands at the threshing floor as God relents from destroying Jerusalem; this location becomes the site for the altar.

In 1 Chronicles 22:1, David declares this very threshing floor will be the temple site, directly following the altar construction.

2 Samuel 24:18 gives the parallel account of Gad telling David to build an altar on Araunah's threshing floor with identical wording.

2 Chronicles 3:1 reveals that Solomon built the temple on this same threshing floor, showing the altar site became the temple location.