At that time, when David saw that the LORD had answered him at the threshing floor of Ornan the Jebusite, he sacrificed there.
We have here the controversy concluded, and, upon David's repentance, his peace made with God. Though thou wast angry with me, thy anger is turned away. 1. A stop was put to the progress of the execution, Ch1 21:15. When David repented of the sin God repented of the judgment, and ordered the destroying angel to stay his hand and sheath his sword, Ch1 21:27. 2.
Commenting on 1 Chronicles 21:18-30
For the tabernacle of the Lord, which Moses made,.... Or ordered to be made by the command of God, and according to his direction: and the altar of burnt offerings, were at that season in the high place at Gibeon; which was four or five miles from Jerusalem, and too far for David to go in that time of extremity; though he must have gone...
when David saw that the Lord had answered him . . ., he sacrificed there--or, "he continued to sacrifice there." Perceiving his sacrifice was acceptable, he proceeded to make additional offerings there, and seek favor by prayer and expiatory rites; for the dread of the menacing angel destroying Jerusalem while he was absent in the center of worship at Gibeon, especially reverence for the Divine...