18 And Gad came that day to David, and said to him, Go up, rear an altar to Jehovah in the threshing-floor of Araunah the Jebusite. 19 And David, according to the saying of Gad, went up as Jehovah had commanded. 20 And Araunah looked, and saw the king and his servants coming on towards him; and Araunah went out, and bowed himself before the king with his face to the ground. 21 And Araunah said, Why is my lord the king come to his servant? And David said, To buy the threshing-floor of thee, to build an altar to Jehovah, that the plague may be stayed from the people. 22 And Araunah said to David, Let my lord the king take and offer up that which is good in his sight: see, [here are] oxen for the burnt-offering, and the threshing-sledges and implements of the oxen for wood. 23 All these things, O king, doth Araunah give to the king. And Araunah said to the king, Jehovah thy God accept thee. 24 And the king said to Araunah, No; but I will in any case buy [them] of thee at a price: neither will I offer up to Jehovah my God burnt-offerings without cost. And David bought the threshing-floor and the oxen for fifty shekels of silver.
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.