King David said to Ornan, No; but I will most assuredly buy it for the full price: for I will not take that which is your for Yahweh, nor offer a burnt-offering without cost.
"Perhaps the one thing that impresses more than David’s sins in his life are his repentances (cf. 2 Samuel 12:13 ff., and, associated in its heading with the same incident, Psalms 51). We do well to let his willingness to come fully to terms with his deficiencies inform our own responses to our moral failures before God." [Note: McConville, p. 71.] 