1 Chronicles 21:15–19
15 And God sent an angel to Jerusalem to destroy it; but when he was about to destroy it, the Lord took note and relented concerning the calamity; he said to the destroying angel, “Enough! Stay your hand.” The angel of the Lord was then standing by the threshing floor of Ornan the Jebusite. 16 David looked up and saw the angel of the Lord standing between earth and heaven, and in his hand a drawn sword stretched out over Jerusalem. Then David and the elders, clothed in sackcloth, fell on their faces. 17 And David said to God, “Was it not I who gave the command to count the people? It is I who have sinned and done very wickedly. But these sheep, what have they done? Let your hand, I pray, O Lord my God, be against me and against my father’s house; but do not let your people be plagued!”
18 Then the angel of the Lord commanded Gad to tell David that he should go up and erect an altar to the Lord on the threshing floor of Ornan the Jebusite. 19 So David went up following Gad’s instructions, which he had spoken in the name of the Lord.