18 That same day Gad came to David and said, "Go and build an altar on the threshing floor of Araunah the Jebusite." 19 David did what Gad told him, what God commanded. 20 Araunah looked up and saw David and his men coming his way; he met them, bowing deeply, honoring the king 21 and saying, "Why has my master the king come to see me?" "To buy your threshing floor," said David, "so I can build an altar to God here and put an end to this disaster." 22 "Oh," said Araunah, "let my master the king take and sacrifice whatever he wants. Look, here's an ox for the burnt offering and threshing paddles and ox-yokes for fuel 23 - Araunah gives it all to the king! And may God, your God, act in your favor." 24 But the king said to Araunah, "No. I've got to buy it from you for a good price; I'm not going to offer God, my God, sacrifices that are no sacrifice."
Matthew Henry's Commentary on 2 Samuel 24:18-24
Commentary on 2 Samuel 24:18-25
(Read 2 Samuel 24:18-25)
God's encouraging us to offer to him spiritual sacrifices, is an evidence of his reconciling us to himself. David purchased the ground to build the altar. God hates robbery for burnt-offering. Those know not what religion is, who chiefly care to make it cheap and easy to themselves, and who are best pleased with that which costs them least pains or money. For what have we our substance, but to honour God with it; and how can it be better bestowed? See the building of the altar, and the offering proper sacrifices upon it. Burnt-offerings to the glory of God's justice; peace-offerings to the glory of his mercy. Christ is our Altar, our Sacrifice; in him alone we may expect to escape his wrath, and to find favour with God. Death is destroying all around, in so many forms, and so suddenly, that it is madness not to expect and prepare for the close of life.